| Developer(s) | Philip Chee [1] |
|---|---|
| Initial release | 28 January 2004 |
| Stable release | 1.5.20 (December 6, 2015 [2] ) [±] |
| Preview release | 1.3.21 for Seamonkey [3] / 7 December 2014 |
| Operating system | Cross-platform |
| Available in | 34 languages |
| Type | Firefox extension |
| License | MPL1.1/GPL 2.0/LGPL 2.1 [4] |
| Website | flashblock.mozdev.org |
Flashblock is a discontinued Flash content-filtering Firefox extension for Mozilla Firefox and SeaMonkey. [5]
Flashblock allows users to prevent page elements, such as HTML object tag browser plug-ins and advertisements, from being displayed. Flashblock neither stops the download of Flash content nor does it prevent its execution completely.
The extension uses XBL and CSS to prevent elements of Silverlight, Macromedia Authorware, Adobe Director and Adobe Flash from being displayed. [6] Flashblock does not prevent the elements from being downloaded. [7]
Flashblock provides a mechanism that allows users to display the blocked elements by clicking on them, or by whitelisting.
Flashblock is based on a bookmarklet by Jesse Ruderman. [6] [8]
In 2006, InformationWeek recommended Flashblock, and described it as one of the most popular Firefox extensions. [9] [10] Lifehacker advocated its use in 2009. [11] It was reviewed by download.com in 2011, [12] by Softpedia, [13] and in 2016 Tomsguide.com included it in its "40 Best Firefox Browser Add-Ons". [14]
ChatZilla was an IRC client that is part of SeaMonkey. It was previously an extension for Mozilla-based browsers such as Firefox, introduced in 2000. It is cross-platform open source software which has been noted for its consistent appearance across platforms, CSS appearance customization and scripting.
XUL, which stands for XML User Interface Language, is a user interface markup language developed by Mozilla. XUL is an XML dialect for writing graphical user interfaces, enabling developers to write user interface elements in a manner similar to web pages.
Mozilla Firefox or simply Firefox is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. Firefox uses the Gecko rendering engine to display web pages, which implements current and anticipated web standards. In 2017, Firefox began incorporating new technology under the code name Quantum to promote parallelism and a more intuitive user interface. Firefox is available for Windows 7 and later versions, macOS, and Linux. Its unofficial ports are available for various Unix and Unix-like operating systems, including FreeBSD, OpenBSD, NetBSD, illumos, and Solaris Unix. Firefox is also available for Android and iOS. However, the iOS version uses the WebKit layout engine instead of Gecko due to platform requirements, as with all other iOS web browsers. An optimized version of Firefox is also available on the Amazon Fire TV, as one of the two main browsers available with Amazon's Silk Browser.
XBL is an XML-based markup language for altering the behavior of XUL widgets. It was devised at Netscape in the late 1990s as an extension of XUL.
The following tables compare general and technical information for a number of web browsers. For further references, a browser support matrix is a table of support of a Webpage by browsers.
Ghostzilla is a discontinued open source web browser for Microsoft Windows based on Mozilla Application Suite 1.0.1. It ran the browser inside the window space of another application, where the page was then made to look like the content in an email. When moving the cursor out of the window, the browser subsequently disappeared.
Mozilla Firefox has features that allow it to be distinguished from other web browsers, such as Chrome and Internet Explorer.
FlashGot was an add-on for Firefox that allowed interoperability between the Firefox browser and external download managers. It is no longer compatible with later versions of Firefox. It is not itself a download manager but is designed to allow the Firefox interface to be extended to connect to the selected external download manager. This avoided launching the download manager as an independent application and cutting and pasting the across the links of the files that need to be downloaded. Forked browsers like Pale Moon and Waterfox are also supported.
Add-on is the Mozilla term for software modules that can be added to the Firefox web browser and related applications. Mozilla hosts them on its official add-on website.
NoScript is a free software extension for Mozilla Firefox, SeaMonkey, other Mozilla-based web browsers and Google Chrome, created and maintained by Giorgio Maone, an Italian software developer and member of the Mozilla Security Group.
A browser extension is a small software module for customizing a web browser. Browsers typically allow a variety of extensions, including user interface modifications, cookie management, ad blocking, and the custom scripting and styling of web pages.
Tab Mix Plus was a Mozilla Firefox extension that adds to the tabbed browsing functions in Firefox. It was a popular extension on Mozilla Add-ons, which records download statistics. TMP is a collection of features from other extensions built in one package. Lifehacker named it one of their "Top 10 must-have Firefox extensions" for 2009. PC World said that "With Tab Mix Plus, Firefox tabs go past the obvious and into the indispensable... it's hard to imagine how you lived without it." As the only extension providing multi-row tab support, Wired and CNET both called it a "must-have" that is "powerful" and "gives you what feels like an infinite amount of control over tab behaviour."
A local shared object (LSO), commonly called a Flash cookie, is a piece of data that websites that use Adobe Flash may store on a user's computer. Local shared objects have been used by all versions of Flash Player since version 6.
DownThemAll! (DTA) is a free software download manager browser extension. DTA can download all or some linked files, images, or embedded objects associated with a webpage. It can pause, resume, or restart downloads.
Stylish is a user style manager that can change the appearance of web pages in a user's browser without changing their content by including user-supplied CSS style sheets with those supplied by the web site itself. The Stylish browser extension includes tools with which to write user styles, and can install user styles written by other Stylish users from a companion website. These user styles may be more or less selective, targeting just one web page, or all of the pages on a domain, or every page on the web.
Firebug is now inbuilt in Firefox.
Web Slices are a web feed technology based on the hAtom Microformat that allows users to subscribe to portions of a web page. Microsoft developed the Web Slice format, and published a specification under their Open Specification Promise. The specification is not published by any independent standards body. Introduced in Internet Explorer 8 Beta 1, Web Slices can be previewed in a fly-out window. As of 2012,, Internet Explorer 8 and 9 were the only browsers to support Web Slices natively, although Mozilla Firefox had support via an add-on called webchunks.
The Mozilla Archive Format (MAFF) is a legacy web page archiving format provided by Firefox through an extension. It is used to save one or more web pages together with their associated audio, video, and other related web resources to a single file. Unlike MHTML, which uses MIME encoding within a single HTML file, MAFF compresses the page into a ZIP container file.
Content Security Policy (CSP) is a computer security standard introduced to prevent cross-site scripting (XSS), clickjacking and other code injection attacks resulting from execution of malicious content in the trusted web page context. It is a Candidate Recommendation of the W3C working group on Web Application Security, widely supported by modern web browsers. CSP provides a standard method for website owners to declare approved origins of content that browsers should be allowed to load on that website—covered types are JavaScript, CSS, HTML frames, web workers, fonts, images, embeddable objects such as Java applets, ActiveX, audio and video files, and other HTML5 features.
Browser security is the application of Internet security to web browsers in order to protect networked data and computer systems from breaches of privacy or malware. Security exploits of browsers often use JavaScript, sometimes with cross-site scripting (XSS) with a secondary payload using Adobe Flash. Security exploits can also take advantage of vulnerabilities that are commonly exploited in all browsers.
