Up & Coming Extensions

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Form History Control

Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.

Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.

Control for which webpage form history is saved or not.

Rated 5 out of 5 stars (81)
25,579 users

Awesome Auto Archive No Restart

Automatically do Archive/Copy/Delete/Move actions based on user defined rules

Rated 4 out of 5 stars (20)
6,633 users

Highlighter

Quickly highlight some text in Thunderbird message composing windows.

Rated 4 out of 5 stars (50)
9,280 users

LastPass Password Manager

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Rated 4 out of 5 stars (1,337)
749,673 users

DownThemAll! Featured

The first and only download manager/accelerator built inside Firefox!

Rated 4 out of 5 stars (1,724)
1,301,218 users

Font Finder

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.

Rated 4 out of 5 stars (69)
34,683 users

rikaichan

Japanese to English/German/French/Russian dictionary. Just hover the mouse on top of a word, and a popup appears. Automatically de-inflects verbs and adjectives. Detailed kanji view...

Rated 5 out of 5 stars (92)
47,558 users

History Janitor

Firefox does not give an option to remove the oldest entries from the history. History Janitor automatically purges history entries on Firefox startup. The user is allowed to specify a number of days. Everything older than this number is deleted!

Rated 3 out of 5 stars (11)
2,176 users

FoxyProxy Basic

FoxyProxy Basic is a simple on/off proxy switcher. More advanced features and configuration options are offered by FoxyProxy Standard.

Rated 4 out of 5 stars (31)
23,021 users

AutoPager Fixed

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 4 out of 5 stars (53)
12,211 users

Open With Google Chrome No Restart

Open With Google Chrome sends pages from Mozilla Firefox to Google Chrome.

Rated 4 out of 5 stars (5)
12,711 users

YouTube Anywhere Player No Restart

Watch videos anywhere in cinema mode without leaving the website you're on.

Rated 5 out of 5 stars (62)
25,342 users

Stylish Tools

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (3)
1,374 users

Facebook Touch Panel

Facebook Touch Panel lets you quick check your Facebook Notifications and Messages by a special touch Panel without leaving your web experience.

Rated 4 out of 5 stars (31)
1,428 users

Config Descriptions No Restart

Shows source comments for advanced application preferences in about:config

Rated 5 out of 5 stars (20)
2,228 users

Facebook Like No Restart

Facebook Like lets you "Like" any web page with a special Facebook button.

Rated 5 out of 5 stars (2)
2,294 users

StartupMaster No Restart

Asks for the master password at startup (fixes multiple password prompt)

Rated 4 out of 5 stars (219)
18,699 users

Key config

This add-on provides configurable keyboard shortcuts for several actions and a dialog to customize them.
All shortcuts can be redefined in Tools -> Key settings

Rated 3 out of 5 stars (18)
3,781 users

Rikaichan Japanese-English Dictionary File

This is a dictionary file add-on for the Rikaichan extension.

Rated 5 out of 5 stars (6)
40,848 users

Year view

Year view for calendar.

Rated 4 out of 5 stars (46)
4,594 users