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Extension Auto-Installer

Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.

Rated 5 out of 5 stars (35)
3,089 users

about:addons-memory 2016

Adds a new page that shows add-on memory usage

Rated 5 out of 5 stars (29)
14,910 users

Copy Profile

Copy your profile to the sdcard for easy debugging.

Rated 5 out of 5 stars (10)
353 users

AdStopEnforcer Compatible with Firefox 57+

Prevent boring messages like "disable your ad-blocker and refresh page to continue"

Rated 5 out of 5 stars (17)
3,156 users

Quora Login Bypass Compatible with Firefox 57+

Lets you Bypass Quora Login.
A Quora Blog shared this trick/hack so that knowledge can be shared without restriction. If you are logged in, it won't do anything.
But say you are not logged in (or using private window), then this comes handy.

Rated 5 out of 5 stars (5)
102 users

JSONovich

Pretty-prints JSON content in the browser for easy, unobtrusive viewing.

Rated 4 out of 5 stars (42)
7,503 users

Youtube's Annotations No More

Disable Youtube's annotations.

Rated 5 out of 5 stars (6)
2,676 users

Amazing TTV Compatible with Firefox 57+

Rated 5 out of 5 stars (6)
457 users

Search and Wider Mail by Yahoo

Expand your Yahoo Mail inbox. Set Yahoo as your default search and enjoy a wider view.

Wider mail experience works only with Yahoo as the default search engine.

Rated 4 out of 5 stars (23)
25,883 users

Skip adf.ly skip!!

This addon allows you to skip automatically advertising adf.ly.
Basically when the page loads the site adf.ly with various advertisements, the add-on does go directly to the site you want, but waiting a few seconds.
It is compatible with Android.

Rated 4 out of 5 stars (27)
7,550 users

Console

Adds an error console in the browser

Rated 5 out of 5 stars (7)
1,088 users

Big Navigation

enlarging the navigation links on the pages

Rated 5 out of 5 stars (7)
503 users

Open Native App

Open Play Store, Youtube and other links in their Android native apps!

Rated 4 out of 5 stars (16)
1,606 users

One-click Screenshot Compatible with Firefox 57+

Take screenshots of entire websites. Simple as that.

Rated 5 out of 5 stars (7)
1,653 users

Toggle Pin Tab (WebExtension) Compatible with Firefox 57+

Press Alt+P to toggle the pin stat of the current tab

Rated 5 out of 5 stars (4)
47 users

OctoLinker Compatible with Firefox 57+

The OctoLinker extension is pretty handy for reading code on GitHub. It makes e.g. require and import statements clickable.

Rated 5 out of 5 stars (4)
322 users

Load from Cache

Force Load Ressources from Cache ->
less bandwidth usage, slight speed up of the web and more privacy.

Rated 4 out of 5 stars (23)
1,872 users

Anki 划词制卡助手 Compatible with Firefox 57+

Anki 划词制卡助手,,用于网页即时英汉划词翻译,辅助记忆软件Anki一键制卡。

Rated 5 out of 5 stars (7)
265 users

Content MathML Polyfill Compatible with Firefox 57+

Converter from content MathML to presentation MathML

Rated 5 out of 5 stars (3)
171 users

Text Reflow

Allow click events to reflow text of that tag to fit screen width

Rated 4 out of 5 stars (23)
591 users