Top-Rated Extensions

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Gmail Manager-community Requires Restart

Manage multiple Gmail accounts and receive new mail notifications.

Rated 3 out of 5 stars (31)
1,367 users

Gmail S/MIME Requires Restart

Send and receive signed and encrypted messages in Gmail.

Rated 3 out of 5 stars (46)
1,582 users

easy Xdebug Requires Restart

This addon was built to make debugging while using netbeans PHP easier.

Rated 3 out of 5 stars (38)
2,567 users

BatchDownload Requires Restart

Like FlashGet's batch download,but special designed for some image site!

Rated 3 out of 5 stars (22)
4,015 users

HostIP.info Geolocation Plugin Requires Restart

Displays Geolocation information for a website using hostip.info data. Works with all versions of Firefox...

Rated 4 out of 5 stars (13)
427 users

Hide Fullscreen Alert

Hide Fullscreen Alert

Rated 4 out of 5 stars (7)
554 users

FAYT Revived Requires Restart

Regain possesion of your good "Find As You Type" search bar in Firefox and SeaMonkey!

Rated 4 out of 5 stars (4)
203 users

LastColour Requires Restart

Colour your text to the "last-picked" colour you chose in the colour-picker. Now you don't have to use the colour picker every time.

Rated 4 out of 5 stars (4)
271 users

printplus Requires Restart

PDF export support by Gecko.
https://github.com/hATrayflood/printplus

Rated 4 out of 5 stars (5)
517 users

Scroll Menus On Drag Requires Restart

Scrolls menus when dragging, fixing bugs 194319, 240709, and 349932. Scrolls all autorepeatbuttons and prevents bookmarks menu hiding on all menuseparators.

Rated 4 out of 5 stars (5)
0 users

Colorific

Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.

Rated 4 out of 5 stars (10)
730 users

docked JS-Console Requires Restart

docks the JS-Console to the Bottom of the Browser

feel free to have a look at the source (see below) and suggest enhancements (borstel33 web de , Subject: docked JS-Console)

Rated 4 out of 5 stars (10)
56 users

Display mail route Requires Restart

Displays country icons for the stations (server) the mail has been routed.

Rated 4 out of 5 stars (10)
59 users

Force HTML5 Video Player at vk.com (ВКонтакте.ру) Requires Restart

Принудительный вызов HTML5 плеера ВКонтакте даже при наличии Adobe Flash (можно отключить это поведение в настройках аддона).
Force load of HTML5 video player of vk.com even when Abode Flash is avaliable.

Rated 4 out of 5 stars (6)
317 users

log2stas LiveJournal Add-on Requires Restart

a) Auto-expand comments threads b) Copy a fragment of text or link to a picture to LJ editor from other pages. c) Simplify use of lj-cut d) Allow quickly switch between anonymous and normal browsing.

Rated 4 out of 5 stars (6)
149 users

SyncKolab Requires Restart

SyncKolab can synchronize your calendar, address book and tasks against an IMAP server in Kolab formats version 1 (vCard/iCal) or version 2 (XML) or turn your Thunderbird/Lightning into a native Kolab Client (http://kolab.org).

Rated 3 out of 5 stars (75)
4,140 users

AutoPager Fixed Requires Restart

AutoPager Fixed is a working version of AutoPager extension for Firefox 36+ (non-E10s mode) to autoload the next page(s) when you scroll pages.

ATTENTION: DISABLE THE ORIGINAL AUTOPAGER ADDON!

Rated 3 out of 5 stars (51)
6,735 users

Sharp Color Picker

A full featured color selector tool, to work with colors, and easily find the colors you want.

Rated 5 out of 5 stars (2)
1,409 users

From/To Column Requires Restart

Add a “From/To” column which shows the recipient if you are the sender.

Rated 5 out of 5 stars (2)
121 users

Character Palette Requires Restart

Firefox toolbar for selecting strange characters that are not on my keyboard.

Rated 3 out of 5 stars (13)
423 users