Miscellaneous

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Element Hiding Helper for Adblock Plus No Restart

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (449)
16,483 weekly downloads

Download Status Bar No Restart

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

Rated 5 out of 5 stars (352)
13,363 weekly downloads

SQLite Manager

Manage any SQLite database on your computer.

Rated 5 out of 5 stars (46)
13,284 weekly downloads

ImportExportTools

Adds some tools to import and export folders and messages

Rated 4 out of 5 stars (139)
11,485 weekly downloads

Provider for Google Calendar

Allows bidirectional access to Google Calendar

Rated 4 out of 5 stars (1,029)
11,130 weekly downloads

JavaScript Debugger

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Rated 4 out of 5 stars (50)
7,469 weekly downloads

Quicktext

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Rated 4 out of 5 stars (315)
7,392 weekly downloads

Signature Switch

Switch the signature on/off or choose a new one from your predefined set...

Rated 4 out of 5 stars (177)
5,459 weekly downloads

MinimizeToTray revived

Minimizes windows into the system tray.

Rated 4 out of 5 stars (319)
4,363 weekly downloads

UnMHT No Restart

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 5 out of 5 stars (224)
3,613 weekly downloads

Tiny JavaScript Debugger

TinyJSD is a JavaScript debugger for privileged code running Mozilla products like Firefox, Thunderbird, SeaMonkey. It serves to debug the application as well as extensions written in JavaScript.

Rated 4 out of 5 stars (6)
3,005 weekly downloads

Add-ons Manager Context Menu

Add more items to Add-ons Manager context menu.

Rated 5 out of 5 stars (33)
2,794 weekly downloads

Diagnostics for Adblock Plus No Restart

Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.

Rated 5 out of 5 stars (1)
2,701 weekly downloads

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)
2,234 weekly downloads

Toolbar Buttons No Restart

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Rated 4 out of 5 stars (322)
2,222 weekly downloads

Classic Toolbar Buttons No Restart

'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!

Rated 5 out of 5 stars (150)
2,088 weekly downloads

QuickNote

A simple note-taking extension.

Rated 5 out of 5 stars (171)
2,021 weekly downloads

Restart

"Restart" menu and button, with configurable shortcut key.

Rated 5 out of 5 stars (50)
2,001 weekly downloads

Copy Plain Text 2

Copies text without formatting

Rated 5 out of 5 stars (65)
1,879 weekly downloads

AutoProxy-ng

This is a fork of AutoProxy, which can run the latest version of Firefox.

Rated 4 out of 5 stars (5)
1,871 weekly downloads