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In 1992, an extension to the HTTP protocol was introduced adding a User-Agent HTTP Header which was sent from the client to the server and contained a simple string identifying the name of the client and its version. The header was meant purely for statistical purposes and for tracking down clients that violated the protocol.
In Mozilla, Firefox before 0.7, and before 0.5 [clarification needed], the package contained a JavaScript install script (install.js) with some directives for actions to take during an install, including adding files and directories, removing old or obsolete files and directories, executing command line tools, etc.
Do Not Track setting in a user's web browser. Read Aloud: GPL-3.0: No No Yes Yes Accessibility A Text to Speech Voice Reader Stylus: GPL-3.0: No No Yes Yes CSS Customization Turn Off the Lights GPL-2.0: No No Yes Yes Customization Obscure or mask content other than a running video. uBlock Origin: GPL-3.0: No No Yes Yes Wide-spectrum content blocker
Compared to writing a full-fledged Firefox extension, user scripting is a very modest step up in complexity from basic web programming. However, Greasemonkey scripts are limited due to security restrictions imposed by Mozilla's XPCNativeWrappers [ 23 ] For example, Greasemonkey scripts do not have access to many of Firefox's components, such as ...
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On the Web, a user agent is a software agent responsible for retrieving and facilitating end-user interaction with Web content. [1] This includes all web browsers , such as Google Chrome and Safari , some email clients , standalone download managers like youtube-dl , and other command-line utilities like cURL .
VIEW ALL PRODUCTS AND SYSTEM REQUIREMENTS. AOL Live Support: Web Browser Extensions: Operating Systems - Windows 7 or later, Mac OS X 10.7 (Lion) or later, Linux, Chrome OS Web Browsers - Internet ...
This meant that a legacy extension could read or modify the data used by another extension or any file accessible to the user running Mozilla applications. [15] But the current WebExtensions API imposes security restrictions. [16] Starting with Firefox 40, Mozilla began to roll out a requirement for extension signing. [17]