Gmail is the email service provided by Google. As of 2019, it had 1.5 billion active users worldwide, making it the largest email service in the world. It also provides a webmail interface, accessible through a web browser, and is also accessible through the official mobile application. Google also supports the use of third-party email clients via the POP and IMAP protocols.
The Platform for Privacy Preferences Project (P3P) is an obsolete protocol allowing websites to declare their intended use of information they collect about web browser users. Designed to give users more control of their personal information when browsing, P3P was developed by the World Wide Web Consortium (W3C) and officially recommended on April 16, 2002. Development ceased shortly thereafter and there have been very few implementations of P3P. Internet Explorer and Microsoft Edge were the only major browsers to support P3P. Microsoft has ended support from Windows 10 onwards. Internet Explorer and Edge on Windows 10 no longer support P3P. The president of TRUSTe has stated that P3P has not been implemented widely due to the difficulty and lack of value.
The following tables compare general and technical information for a number of notable webmail providers who offer a web interface in English.
HTTP cookies are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's web browser. Cookies are placed on the device used to access a website, and more than one cookie may be placed on a user's device during a session.
In HTTP, "Referer" is an optional HTTP header field that identifies the address of the web page from which the resource has been requested. By checking the referrer, the server providing the new web page can see where the request originated.
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.
Tor is a free overlay network for enabling anonymous communication. Built on free and open-source software and more than seven thousand volunteer-operated relays worldwide, users can have their Internet traffic routed via a random path through the network.
SRWare Iron is a Chromium-based web browser developed by the German company SRWare. It primarily aims to eliminate usage tracking and other privacy-compromising functionality that the Google Chrome browser includes. Iron ships with certain Chromium privacy options switched on by default, it provides some additional features that distinguish it from Google Chrome.
DuckDuckGo is an American software company that offers a number of products intended to help people protect their online privacy. The flagship product is a search engine that has been praised by privacy advocates. Subsequent products include extensions for all major web browsers and a custom DuckDuckGo web browser.
Comodo Dragon is a freeware web browser. It is based on Chromium and is produced by Comodo Group. Sporting a similar interface to Google Chrome, Dragon does not implement Chrome's user tracking and some other potentially privacy-compromising features, replacing them with its own user tracking implementations, and provides additional security measures, such as indicating the authenticity and relative strength of a website's Secure Sockets Layer (SSL) certificate.
Do Not Track (DNT) is a formerly official HTTP header field, designed to allow internet users to opt out of tracking by websites—which includes the collection of data regarding a user's activity across multiple distinct contexts, and the retention, use, or sharing of data derived from that activity outside the context in which it occurred.
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.
Yandex Browser is a freeware web browser developed by the Russian technology corporation Yandex that uses the Blink web browser engine and is based on the Chromium open source project. The browser checks webpage security with the Yandex security system and checks downloaded files with Kaspersky Anti-Virus. The browser also uses Opera Software's Turbo technology to speed web browsing on slow connections.
United States v. Google Inc., No. 3:12-cv-04177, is a case in which the United States District Court for the Northern District of California approved a stipulated order for a permanent injunction and a $22.5 million civil penalty judgment, the largest civil penalty the Federal Trade Commission (FTC) has ever won in history. The FTC and Google Inc. consented to the entry of the stipulated order to resolve the dispute which arose from Google's violation of its privacy policy. In this case, the FTC found Google liable for misrepresenting "privacy assurances to users of Apple's Safari Internet browser". It was reached after the FTC considered that through the placement of advertising tracking cookies in the Safari web browser, and while serving targeted advertisements, Google violated the 2011 FTC's administrative order issued in FTC v. Google Inc.
uBlock Origin is a free and open-source browser extension for content filtering, including ad blocking. The extension is available for Chrome, Chromium, Edge, Firefox, Brave, Opera, Pale Moon, as well as versions of Safari before 13. uBlock Origin has received praise from technology websites and is reported to be much less memory-intensive than other extensions with similar functionality. uBlock Origin's stated purpose is to give users the means to enforce their own (content-filtering) choices.
Google's changes to its privacy policy on March 16, 2012, enabled the company to share data across a wide variety of services. These embedded services include millions of third-party websites that use AdSense and Analytics. The policy was widely criticized for creating an environment that discourages Internet innovation by making Internet users more fearful and wary of what they do online.
Brave is a free and open-source web browser developed by Brave Software, Inc. based on the Chromium web browser. Brave is a privacy-focused browser, which automatically blocks most advertisements and website trackers in its default settings. Users can turn on optional ads that reward them for their attention in the form of Basic Attention Tokens (BAT), which can be used as a cryptocurrency or to make donations to registered websites and content creators.
Searx is a free and open-source metasearch engine, available under the GNU Affero General Public License version 3, with the aim of protecting the privacy of its users. To this end, Searx does not share users' IP addresses or search history with the search engines from which it gathers results. Tracking cookies served by the search engines are blocked, preventing user-profiling-based results modification. By default, Searx queries are submitted via HTTP POST, to prevent users' query keywords from appearing in webserver logs. Searx was inspired by the Seeks project, though it does not implement Seeks' peer-to-peer user-sourced results ranking.
Federated Learning of Cohorts (FLoC) is a type of web tracking. It groups people into "cohorts" based on their browsing history for the purpose of interest-based advertising. FLoC was being developed as a part of Google's Privacy Sandbox initiative, which includes several other advertising-related technologies with bird-themed names. Despite "federated learning" in the name, FLoC does not utilize any federated learning.
A virtual private network (VPN) service provides a proxy server to help users bypass Internet censorship such as geo-blocking and users who want to protect their communications against data profiling or MitM attacks on hostile networks.
