Features of the Opera web browser

Last updated
The Red O-Letter-Logo of the Opera Browser, in use since September 2015. Opera 2015 icon.svg
The Red O-Letter-Logo of the Opera Browser, in use since September 2015.

This article details features of the Opera web browser.

Contents

Currently supported features

Access recently closed pages
Opera allows its users to retrieve all of the tabs or windows closed earlier in the current session from a list. Closed tabs can be recovered in the reverse sequence in which they were closed, by default this is achieved via the keyboard shortcut Ctrl + Shift + T. Users can also access recently closed tabs from other devices synced to their Opera account, including tablets and phones.

Opera 7, released 28 January 2003

Download manager
Opera allows its users to pause, resume, or restart the transfer of files. It also keeps the history of downloaded files and allows opening the files—or the folder where the file has been downloaded to—from within the browser. [2] When a download begins, a pop-up and a button will appear at the top-right area of the interface to show the download progress.
Extensions
Extensions allow users to easily add functionality to their Opera browser, as well as share most APIs with the Chromium extension model. Developers can easily create extensions using open standards (HTML5, CSS, JavaScript) and specific extensions can be created to function as Speed Dial items.

Opera 11, released 16 December 2010

Image loading setting
Opera offers the option to load a page without images, or to use only images already in the web cache. [3] This may be useful for users who are connected on dial-up via modem or on a slow wireless/cellular connection that may charge for the amounts of data downloaded.
Mouse gestures
Opera was one of the first browsers to support mouse gestures, [4] which allows patterns of mouse movement to trigger common browsing actions, such as "back" or "refresh". [5] Mouse gestures work by holding the right mouse button, moving the mouse a certain direction, then releasing the button. This option is similar to using keyboard shortcuts, as it saves time since users do not have to navigate to graphical buttons using the mouse pointer (thereby avoiding usability problems relating to Fitts' Law).

Some of the default mouse gestures include:

Opera 5.10, released April 2001

Opera Turbo
When Opera Turbo mode is enabled, Opera compresses requested web pages (but not HTTPS secure pages) by up to 80%, depending upon content, before sending it to the user. [6] This process reduces the total amount of data sent and is particularly useful with slower internet connections, making pages load faster, or when there are restrictions or costs dependent upon the amount of data transferred. [6] This technique is also used in Opera Mini for mobile telephones. [7]

Around April 2019, Opera removed this functionality in its desktop browsers and it's no longer supported on desktop. The fate of it on its mobile browsers is uncertain.

Page zooming
Opera offers full page zooming. [8] Instead of just making the text bigger, this feature expands all page elements, including text, images, videos, and other content such as Adobe Flash, Java and Scalable Vector Graphics to be increased or decreased in size (25% to 500%). Extensions may also be used to do this and to enable high contrast coloured fonts. Full page zooming prevents inconsistencies that occur when regular text enlargement forces the content to be bigger than its container. Zooming can be done using multi-touch pinching gestures on supported platforms.
Password manager
Each time a web page includes a password form, users have the option to store that password for later use. With the password manager, when a user re-visits these pages, the username and password fields will be already filled in.
Pop-up blocking
Opera allows its users to control whether web sites may open pop-up windows. By default, Opera blocks all unrequested pop-ups and the behavior may be set on a per-site basis. Windows that have been blocked may be later opened at the user's discretion.
Private browsing
Opera's privacy mode, Private Windows, allows users to surf the web without leaving traces of the browsing session in that special window.

Opera's original privacy feature, Private Tabs, allowed users to open a private browsing session in a tab in the current window, instead of a separate window. It would not record browsing history, use the web cache, or stored passwords, and would forget any information accessed in the Tab when it is closed. This feature was replaced by Private Windows in Opera 15. Opera 10.50 (Tabs) / Opera 15 (Windows)

Safer address field
Opera applies domain highlighting; hides query strings in order to conceal the complexity of long web addresses; and, instead of displaying the protocol, Opera displays a badge that the user can click on to view a security assessment—including information about available SSL or TLS certificates—for the particular page being visited.:

This tool is directly tied to NetCraft and Phishtank, thereby serving as a phishing filter as well as real-time fraud protection.

Search engines
Opera provides quick access to a variety of search engines and commerce sites, via the use of search plugins. The user can type the search string in the address field and it will display search suggestions for supported websites. Many search plugins are included with the browser, but they can also be user-defined or installed from external sources. Since Opera 9, a user can right-click a search field on a website and select the "create search" option to add it as a custom search engine. Additionally, with this function a user is able to translate a paragraph or look for the meaning of a word directly for example.

The user can select the desired search engine via a list or by using keywords in the address field. Example: Opera has a pre-set keyword for using the Google search engine: "g". Therefore, if a user types "g wikipedia" directly into the address field, Opera performs a Google search for "wikipedia". Other keywords are included, including "b" for Bing, "y" for Yahoo! Search, and "w" for Wikipedia. Users can also customize their own keywords. Opera 4, released 28 June 2000

Snapshot tool
Opera 49 added a screenshotting tool with editing features, including a selfie mode. [9]

Opera 49

A Screenshot of the Speed Dial page on Mac OS. Opera 11 on OS X.png
A Screenshot of the Speed Dial page on Mac OS.
Speed Dial Browsing
When a new tab is opened, the blank page is replaced with a page with slots that the user can set to contain webpage bookmarks. This feature is based on the speed-dial browsing previously introduced in Opera Mini. [10] New versions of Opera's Speed Dial improved the feature by allowing an unlimited number of speed dial entries, Speed Dial extensions, introducing groups, real-time search of entries, added support to user-defined backgrounds and different resolution display layouts (e.g. widescreen).

Users are able to save all the tabs in a window as a Speed Dial group, manage the saved links, and open them all later if wished. Opera 9.2, released 11 April 2007

Standalone installation
Opera's installer allows users the option to install the browser as a "Standalone Installation (USB)," which does not make any modifications to the system that it is executed on. [11]

Opera 11, released 16 December 2010

Tabbed browsing
Opera supports tabbed browsing, which allows for multiple web pages to be opened within the same application window. The tabs can be managed in a tab bar (opening, closing, rearranging, etc.). The user is given options to perform actions such as cloning a tab with its complete history or pinning it. Notably, the part of the tab which displays a page's favicon is used as the indicator of the page loading progress. Also, open tabs can be previewed by hovering your mouse above the tab. This can be disabled through the settings menu.

Opera 4, released 28 June 2000

Task Manager
As Opera is based on Chromium, the Chromium-Browsing-Task Manager, as known from Google Chrome, is also a part of Operas range of features. This is not part of the legacy features of Opera 12.17.
VR player
Opera is the first web browser to provide support for 360-degree videos to be played directly into virtual reality headsets. [9]

}

Legacy features

The Legacy Opera logo before Opera's codebase switched to Chromium and layout engine to Blink Opera O.svg
The Legacy Opera logo before Opera's codebase switched to Chromium and layout engine to Blink

Many notable features, there were available in older versions of the Opera web browser, were removed when Opera switched from its legacy layout engine, Presto, to the Chromium-based Blink engine. Presto was introduced in 2003 (Opera 7) and was used until Opera 12.18, in 2016. [12] [13] [14] [15]

Search engine aliases
Typing an alias in the "omnibar" (combination of address and web search bar) such as g , yt and w prior to the search string launches a search using Google, YouTube and Wikipedia respectively.
BitTorrent
Opera provides the ability to transfer files via a built-in BitTorrent client.

Opera 9, released 20 June 2006

Bookmarks
In Opera 15, the classic bookmark functionality was supplanted by an improved Speed Dial and the introduction of the Stash feature. Many users did not find this to be adequate, and bookmarks returned in a later version [16] :
Content blocker
Content-blocking can be used to block any content on a page, including images, plug-ins (e.g., Flash), videos, scripts, styles, and other resources. To block content, a user must right-click on the page, and click "Block Content". It is then possible to simply select the elements one wishes to block. Users can also control how much they want to block expand using URL's with wildcards and such.

Opera stores its content-blocking URL list in a file called urlfilter.ini. Several internet sites provide a regularly updated urlfilter.ini already loaded with the web's most common advertisements so users can block ads using the built-in feature. The users are able to sync the content blocker list using Opera Link.

Customization
Users have the option of defining the appearance and functionality of every item on the UI with the exception of the minimize, maximize/restore, and exit buttons. Personal preferences for toolbar buttons and menus can be arranged with drag and drop, while access to .ini files allows one to create, define, or redefine buttons, menus tools and functions.

Skins: Opera supports customized user-interface skins, allowing users to change the style and size of toolbars, buttons and menus. A drag and drop functionality allows the user to easily place links and buttons on toolbars. The user is able to install custom skins, ranging from color changes to OS mimics to animated GIF images. [17]

Toolbars: Opera provides toolbars that display different menus and buttons. For example, the "start" toolbar is a drop-down toolbar which can be enabled to provide access to history and bookmarks when the user focuses the address field. Additionally a "view" toolbar includes multiple shortcuts to control the page exhibition and a find in page tool, a "navigation" toolbar can show commands to navigate through webpages, etc.

Developer tools
Dragonfly is a debugging tool—similar to Firebug and developer tools found in other browsers—that allows debugging of the HTML DOM, JavaScript, CSS, and more. A user can set breakpoints and watches, alter scripts on-the-fly, execute statements in the current environment from a console, and audit page resources and local storage. Opera Dragonfly also allows debugging from a personal computer a webpage opened on a handheld or other device.

Dragonfly is written using standard web technology and the Scope protocol, and source is available under the Apache License 2.0. Opera Dragonfly is compatible with Opera products using Presto 2.1 and later. The first stable version of Opera Dragonfly was released on 5 May 2011. Opera 9.5, released 2008

Fit to width
Opera provides a fit-to-width feature that relies on technology similar to Opera Mini's Small Screen Rendering (SSR), allowing websites to fit within a smaller screen resolution without the need for horizontal scrolling.
Full text history search
Words typed in the address field perform full-text search in the browser history. This allows a user to find a page previously accessed by searching by part of the text of its content.

Opera 9.5, released 12 June 2008

Hotclick
Hotclick refers to double-clicking any word in a page and having it to open the context menu instantly, which in Opera includes commands for searching the selected text in search engines and built-in translation, encyclopedia and dictionary services. In addition to this, the Hotclick menu also gives access to the 'copy', 'copy to note' (Opera 7 and later), and 'Send by email' functions.

Opera 6, released 18 December 2001

Opera Panels
Some tools relating to browsing and email functions are organized within Opera Panels. Users can add additional tools by downloading or creating their own. Examples of tools installed by default:
Privacy and security
Opera can be configured to use proxy servers, and has a built-in cookie editor and web cache viewer. Also, the password manager integrated into the browser allows users to set a master password to protect against unauthorized tampering or access to stored passwords. Users have full control over data supplied to the W3C Geolocation API.
Tooltips
Tooltips, which users have the option to disable, are small info boxes that displayed some additional relevant information. Some of Tooltips features include: [18]
Usability and accessibility
Opera was designed to run well even on low-end and small computers, and with a commitment to computer accessibility for users who may have visual or mobility impairments.

It is possible to control all main functions of the browser using only the keyboard, and the default keyboard shortcuts can be modified. Opera also supports the use of access keys to allow a computer user to immediately jump to a specific part of a web page via the keyboard.

Discontinued features

BB-Code-Keystrokes
A user was able to make a text bold, italic and underlined by adding [B][I][U]-tags around the selected text through keyboard shortcuts. If no text was selected, the text would appear where the mouse was.[ citation needed ]
Mouse gestures (some)
Opera used to offer some mouse gestures that are no longer available in the latest version as of now. These include:
Opera Link
;Opera Link allowed users to synchronise their bookmarks, Speed Dial, notes, personal bar, [19] custom search engines, typed history, [20] and the content-blocker list across multiple computers and mobile devices (such as a copy of Opera Mini running on a mobile phone). Furthermore, the bookmarks, notes, and Speed Dial could be accessed through a web interface. [21] :

Opera Link servers left users with only a month to backup their bookmarks one by one, before the feature was discontinued in 2015. [22] User data synchronization support was set to return in a later release, though users on Symbian, J2ME and BlackBerry would not have access to it. Opera 9.50, released 12 June 2008. 14 December 2015

Opera Mail
In addition to the web browser, the other main component in the desktop versions of the Opera suite is the Opera Mail email client, which was integrated with the Opera browser until version 12. Opera Mail supports regular POP and SMTP mail as well as IMAP. It also has an Address book. Opera Mail also features a newsreader and a newsfeed reader for RSS and Atom, as well as an IRC client for online chat. (RSS Reader/News Client now available is modern opera)

Opera 2 Opera 12

Private Tabs
Opera's Private Tabs were introduced in Opera 10.50, allowing users to open a private browsing session in a tab in the current window, instead of a separate window. Private Tabs would not record browsing history, use the web cache, or stored passwords, and would forget any information accessed in the Tab when it is closed.

This feature was replaced by Private Windows in Opera 15. Opera 10.50 Opera 15

Sessions
Opera allowed users to save all the open tabs and windows as a session. This set of pages could then be reopened later as they were previously organized or inserted into the current window. Opera could then also be set up to start with one of the saved sessions. A saved session includes the history of each tab and the settings each one had, such as scrolling position, images on/off, etc.

Since version 32 this feature can only be achieved with a combination of Speed Dial and Bookmarks, or more elegantly by installing a session-manager extension. [23] [24] Opera 4, released 28 June 2000 Opera 32, released September 2015

Tabbed browsing features
Tabbed browsing features that were available in the older versions include:
User JavaScript
Opera supported User JavaScript (UserJS) extensions, which would execute JavaScript when pages were loaded in order to enhance site functionality. UserJS.org, which is currently inactive, was the unofficial central repository for Opera User JavaScripts. [25] Scripts designed for the Greasemonkey Firefox extension are listed on Userscripts.org, though many of them also work with Opera. [26] As of the latest version, extensions can make up for the need for UserJS.

Opera 8, released 19 April 2005

Widgets
Opera Widgets were small standalone applications sitting on the desktop that used the browser's rendering engine. Widgets were phased out starting with Opera 12. [27]

Opera 12

Other

Compatibility

Common compatibility problems are caused by websites not following standards or using methods for detecting the browser being used. To cope with outdated detection methods or poorly built websites, Opera enables users to change the information that is sent to websites to identify what kind of browser is being used—known as the user-agent. In previous years, Opera came preconfigured to partially "cloak" itself as Internet Explorer, but still included the word "Opera" in the user-agent information allowing the browser to be counted in web browser statistics. As websites modernized themselves and Opera 9 became more compatible with IE code, Opera began to use its own identification by default.

Later versions of Opera offered a limited method of cloaking allowing selection from a pre-defined range of options including Mozilla and Internet Explorer. If needed, Opera can mask completely as Internet Explorer or Mozilla, leaving out the reference to Opera in the UA string and JavaScript objects. Some sites test only for objects that are not present in Opera.

The version 8 of Opera introduced a further provision for dealing with faulty coding, by providing a set of scripts in BrowserJS that rewrites known broken pages as they are being opened. The closely related UserJS (similar to Mozilla's Greasemonkey), allows users to run their own code at various times in the processing of a page. These techniques have allowed many popular but incompatible sites to be used fully with Opera. [28]

Opera periodically updates itself with the latest version of BrowserJS and override_downloaded.ini files to keep more sites working correctly in the browser, respectively, they serve to patch websites which would otherwise have issues to run on Opera and to cloak the UA string by default for some website domains.

Related Research Articles

<span class="mw-page-title-main">Web browser</span> Software used to navigate the internet

A web browser is an application for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's screen. Browsers are used on a range of devices, including desktops, laptops, tablets, and smartphones. In 2020, an estimated 4.9 billion people have used a browser. The most used browser is Google Chrome, with a 64% global market share on all devices, followed by Safari with 19%.

<span class="mw-page-title-main">Bookmarklet</span> Web browser bookmark containing JavaScript code

A bookmarklet is a bookmark stored in a web browser that contains JavaScript commands that add new features to the browser. They are stored as the URL of a bookmark in a web browser or as a hyperlink on a web page. Bookmarklets are usually small snippets of JavaScript executed when user clicks on them. When clicked, bookmarklets can perform a wide variety of operations, such as running a search query from selected text or extracting data from a table.

iCab Web browser for MacOS

iCab is a web browser for MacOS and Classic Mac OS by Alexander Clauss, derived from Crystal Atari Browser (CAB) for Atari TOS compatible computers. It was one of the few browsers still updated for the classic Mac OS prior to that version being discontinued after version 3.0.5 in 2008; Classilla was the last browser that was maintained for that OS but it was discontinued in 2021.

<span class="mw-page-title-main">Safari (web browser)</span> Web browser by Apple

Safari is a web browser developed by Apple. It is built into Apple's operating systems, including macOS, iOS, iPadOS and visionOS, and uses Apple's open-source browser engine WebKit, which was derived from KHTML.

<span class="mw-page-title-main">File Explorer</span> File manager application that is included with releases of the Microsoft Windows operating system

File Explorer, previously known as Windows Explorer, is a file manager application and default desktop environment that is included with releases of the Microsoft Windows operating system from Windows 95 onwards. It provides a graphical user interface for accessing the file systems, as well as user interface elements such as the taskbar and desktop.

Pop-up ads or pop-ups are forms of online advertising on the World Wide Web. A pop-up is a graphical user interface (GUI) display area, usually a small window, that suddenly appears in the foreground of the visual interface. The pop-up window containing an advertisement is usually generated by JavaScript that uses cross-site scripting (XSS), sometimes with a secondary payload that uses Adobe Flash. They can also be generated by other vulnerabilities/security holes in browser security.

<span class="mw-page-title-main">Maxthon</span> Freeware web browser for Microsoft Windows, macOS, Android and IOS that is created in Singapore

Maxthon is a freeware web browser, created by JeffChen in Singapore. It is available for Windows, macOS, Linux, and as Maxthon Mobile for Android, iOS, and Windows Phone 8. Since version 6, Maxthon is based on Chromium.

<span class="mw-page-title-main">Graphical widget</span> Element of interaction in a graphical user interface

A graphical widget in a graphical user interface is an element of interaction, such as a button or a scroll bar. Controls are software components that a computer user interacts with through direct manipulation to read or edit information about an application. User interface libraries such as Windows Presentation Foundation, Qt, GTK, and Cocoa, contain a collection of controls and the logic to render these.

This is a comparison of both historical and current web browsers based on developer, engine, platform(s), releases, license, and cost.

<span class="mw-page-title-main">Netscape Browser</span> Internet browser

Netscape Browser is the eighth major release of the Netscape series of web browsers, now all discontinued. It was published by AOL, but developed by Mercurial Communications, and originally released for Windows on May 19, 2005.

Mozilla Firefox has features which distinguish it from other web browsers, such as Google Chrome, Safari, and Microsoft Edge.

The Windows shell is the graphical user interface for the Microsoft Windows operating system. Its readily identifiable elements consist of the desktop, the taskbar, the Start menu, the task switcher and the AutoPlay feature. On some versions of Windows, it also includes Flip 3D and the charms. In Windows 10, the Windows Shell Experience Host interface drives visuals like the Start Menu, Action Center, Taskbar, and Task View/Timeline. However, the Windows shell also implements a shell namespace that enables computer programs running on Windows to access the computer's resources via the hierarchy of shell objects. "Desktop" is the top object of the hierarchy; below it there are a number of files and folders stored on the disk, as well as a number of special folders whose contents are either virtual or dynamically created. Recycle Bin, Libraries, Control Panel, This PC and Network are examples of such shell objects.

<span class="mw-page-title-main">History of the Opera web browser</span>

The history of the Opera web browser began in 1994 when it was started as a research project at Telenor, the largest Norwegian telecommunications company. In 1995, the project branched out into a separate company named Opera Software ASA, with the first publicly available version released in 1996. Opera has undergone extensive changes and improvements, and introduced notable features such as Speed Dial.

A browser toolbar is a toolbar that resides within a browser's window. All major web browsers provide support to browser toolbar development as a way to extend the browser's GUI and functionality. Browser toolbars are considered to be a particular kind of browser extensions that present a toolbar. Browser toolbars are specific to each browser, which means that a toolbar working on a browser does not work on another one. All browser toolbars must be installed in the corresponding browser before they can be used and require updates when new versions are released.

IE7Pro is an add-on for Internet Explorer 6, 7, and 8 that aims to enhance the feature set provided by the browser. IE7Pro adds features such as tab enhancement, an ad blocker and flash blocker, mouse gestures, inline search, privacy enhancements, online bookmark service, Greasemonkey-like user script support, and plug-in support. IE7Pro is available in several languages – this is made possible by user translations.

<span class="mw-page-title-main">Opera (web browser)</span> Freeware web browser

Opera is a multi-platform web browser developed by its namesake company Opera. The current edition of the browser is based on Chromium. Opera is available on Windows, macOS, Linux, Android, and iOS. There are also mobile versions called Opera Mobile and Opera Mini. Opera users also have access to Opera News, a news app based on an AI platform.

<span class="mw-page-title-main">Google Chrome</span> Web browser developed by Google

Google Chrome is a web browser developed by Google. It was first released in 2008 for Microsoft Windows, built with free software components from Apple WebKit and Mozilla Firefox. Versions were later released for Linux, macOS, iOS, and also for Android, where it is the default browser. The browser is also the main component of ChromeOS, where it serves as the platform for web applications.

<span class="mw-page-title-main">Clickjacking</span> Malicious technique of tricking a Web user

Clickjacking is a malicious technique of tricking a user into clicking on something different from what the user perceives, thus potentially revealing confidential information or allowing others to take control of their computer while clicking on seemingly innocuous objects, including web pages.

Firefox was created by Dave Hyatt and Blake Ross as an experimental branch of the Mozilla browser, first released as Firefox 1.0 on November 9, 2004. Starting with version 5.0, a rapid release cycle was put into effect, resulting in a new major version release every six weeks. This was gradually accelerated further in late 2019, so that new major releases occur on four-week cycles starting in 2020.

<span class="mw-page-title-main">Vivaldi (web browser)</span> Web browser with built-in email client

Vivaldi is a freeware, cross-platform web browser with a built-in email client developed by Vivaldi Technologies, a company founded by Tatsuki Tomita and Jon Stephenson von Tetzchner, who was the co-founder and CEO of Opera Software. Vivaldi was initially released on 27 January 2015.

References

  1. "Meet the new Opera brand identity - Blog". Opera News. 22 September 2015.
  2. Download manager in Opera
  3. Images management in Opera
  4. Building a better computer mouse, Evan Hansen, October, 2002, retrieved on October 30, 2005
  5. "Help". opera.com.
  6. 1 2 "Opera's company FAQ". Opera Software. Retrieved 12 June 2014.
  7. "Opera Turbo". Opera Software. Archived from the original on 30 June 2010. Retrieved 5 September 2010.
  8. Zooming in Opera
  9. 1 2 "Opera 49 adds snapshot tool with editing tools - Opera Desktop". Opera Desktop. 2017-11-08. Retrieved 2017-11-25.
  10. ""Is that my blog on your Speed Dial?" - Desktop Team - by Desktop Team". opera.com. Archived from the original on 2 March 2007.
  11. "The Portable Freeware Collection - Opera" . Retrieved 18 April 2011.
  12. Opera: Neu, Schön, ÜBerflüssig - German Page
  13. Operas Changes: Chromium Striked and Changed everything
  14. Opera 15 Launched: First Impressions
  15. Opera 12 Security Update
  16. Gjøsund, Alexander. "Opera Turns After Criticism; Brings Back Bookmarks". TechiFreak. Retrieved 11 August 2013.
  17. Goldman, Daniel (2007-03-12). "Opera Skins will support animated GIF images". Opera Watch. Archived from the original on October 12, 2007. Retrieved 2007-10-17.
  18. Legacy Opera Feature: Tooltips
  19. Kirk, Jeremy (2008-10-28). "Opera Beta Improves Syncin". PCWorld. Retrieved 2008-09-23.
  20. "First 9.60 Snapshot!". Archived from the original on 2008-08-25. Retrieved 2010-05-25.
  21. "Opera 9.5 -- a fine browsing alternative". TechChuck.com. 2008-06-18. Retrieved 2008-09-23.
  22. "Sync browsing data in the Opera browser | Opera".
  23. "Can't find save session option". Opera Forum. 20 June 2015. Retrieved 21 November 2015.
  24. "Confusion with Opera Versions". Opera Forum. 6 October 2015. Retrieved 21 November 2015.
  25. "Home". userjs.org.
  26. "Userscripts.org: Power-ups for your browser". userscripts.org. Archived from the original on 6 May 2014. Retrieved 12 January 2022.
  27. Teigene, Arnstein (24 April 2012). "Increased focus on Opera extensions and ending support for Unite applications and Widgets". Archived from the original on 26 April 2012. Retrieved 9 September 2012.
  28. "UserJS.org".