Up & Coming Extensions

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Session box - Tabs manager No Restart

Manage browser sessions, tabs, and opened windows. Synchronize between computers. Recently closed and last accessed tabs. Save, organize, and synchronize your browser Tabs and Opened Windows.

Rated 3 out of 5 stars (13)
2,997 users

FireBBS.l-hedgehog No Restart

Log on a bbs through telnet in Firefox !

Rated 3 out of 5 stars (3)
1,020 users

Classic Bookmarks Button

Mainly for Firefox 29+!

This add-on restores bookmarks menu known from older Firefox versions on Firefox Australis.

Use 'Customize (Toolbar)' menu to place the new bookmarks button on your favorite toolbar.

Rated 5 out of 5 stars (26)
4,098 users

FlashStopper No Restart

Stops flash autoplay and shows the video preview thumbnail.

Rated 5 out of 5 stars (39)
29,586 users

Hide Favicons

Hide favicons on the bookmark toolbar for a cleaner look.

Rated 4 out of 5 stars (40)
1,189 users

Spell Checker

Checks the (whole) web page (and not the text inside edit box) for spelling mistakes and highlights it.

Rated 3 out of 5 stars (76)
17,935 users

Shortcut Keys for Google Search No Restart

Assign Shortcut Keys for Search Tools of Google Search Result

Rated 5 out of 5 stars (7)
1,045 users

Stream Browser No Restart

Live video stream browser for Twitch.tv, Hitbox.tv and Azubu.tv. Select favorite streams and receive alerts when they come online. A great way to keep track of your favorite Hearthstone, CS:GO, and League of Legends players.

Not yet rated
1,397 users

Phoenix

An editor with real time syntax highlighting which allows edit, run and test CSS, HTML and JavaScript code. Phoenix will tell you how many CSS and JS files are loaded into a page, how big these are, it will let you edit, pack and de-obfuscate them.

Rated 4 out of 5 stars (42)
4,928 users

Clip to OneNote (Legacy Edition) No Restart

Clip to OneNote (Legacy Edition) helps you to send text and pictures to Microsoft Office OneNote with a single click. This is a legacy edition of the original Clip to OneNote (https://addons.mozilla.org/en-US/firefox/addon/clip-to-onenote/)

Rated 4 out of 5 stars (14)
5,464 users

Right Links

This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.

Rated 5 out of 5 stars (109)
8,490 users

Input Language Assistant

Automatically switches input language to English when you type in address bar.

Rated 5 out of 5 stars (33)
1,873 users

Google™ Keep No Restart

Google Keep is a handy and reliable extension designed to store your notes, lists and photos.

Rated 3 out of 5 stars (25)
3,555 users

Extension Auto-Installer No Restart

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 (13)
3,792 users

Switchy No Restart

a Firefox Add-On for a better management of profiles

Rated 4 out of 5 stars (22)
1,785 users

Fast Image Research

Simplifies the reverse image search process by automatically retrieving search results from your choice of Google Images, TinEye, or both. Right click any image to instantly search for its appearance and likeness anywhere on the Web.

Rated 5 out of 5 stars (4)
1,978 users

FastPrevNext No Restart

Easily browse through sequenced URLs

Rated 4 out of 5 stars (9)
1,656 users

User Agent Switcher Featured

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Rated 4 out of 5 stars (245)
398,035 users

Context Font

Show the font of selected text in the context menu.

Rated 4 out of 5 stars (14)
4,130 users

Tamper Data

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...

Rated 4 out of 5 stars (128)
121,877 users