Poster Requires Restart
A developer tool for interacting with web services and other web resources that lets you make HTTP requests, set the entity body, and content type. This allows you to interact with web services and inspect the results...
CacheViewer Requires Restart
This extenion is GUI Front-end of "about:cache"...
XPath Checker Requires Restart
An interactive editor for XPath expressions.
Pearl Crescent Page Saver screenshot tool Requires Restart
Save an image of a web page (including Flash content) to a file. Web page screenshots may be captured interactively or from the command line. Options allow you to control the output format (PNG or JPEG), image file name, scaling, and much more.
Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.
Tilt 3D Requires Restart
A WebGL-based 3D visualization of a webpage.
Classic Toolbar Buttons Featured
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.
Beta builds on versions page!
-Zawgyi-One script fallback fonts for Firefox (Android edition)
Addon installs Zawgyi-One font (Zawgyi-One.ttf under SIL OFL 1.1 license) that enables proper rendering of
Zawgyi-One script on all sites (Facebook, Twitter, Google, etc.),
Font Finder Requires Restart Featured
FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook.
Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
Html Validator Requires Restart
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon
For Online HTML 5 validation, you need 0.962
FoxyProxy Basic Requires Restart
FoxyProxy Basic is a simple on/off proxy switcher. More advanced features and configuration options are offered by FoxyProxy Standard.
Clear Console Requires Restart Featured
One click to clear your cache, cookies, history, html5/local storage, http logins, all of them or restart your browser with/without notifications.
FlareGet Browser Integration extension
FireSSH Requires Restart Featured
Edit Cookies Requires Restart
This extension is now being partly maintained by Abine http://www.abine.com/.
New version of Edit Cookies by us is here: http://abine.com/edit_cookies.php
Send us any feedback about what you want:firstname.lastname@example.org.