Miscellaneous

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Add-ons Manager Context Menu Requires Restart

Add more items to Add-ons Manager context menu.

Rated 5 out of 5 stars (37)
26,183 users

TabSubmit

Lets the user direct the submission of a form to a new tab or window. [Bug #17754]

Rated 5 out of 5 stars (14)
1,805 users

Lightbird Requires Restart

Standalone calendar UI for Lightning

Rated 4 out of 5 stars (13)
4,644 users

InfoLister Requires Restart

Lists installed add-ons (extensions, themes, plugins). Mozilla insists on hiding the version compatible with Firefox 48+, it's at https://addons.mozilla.org/en-US/firefox/addon/infolister/versions/?page=1#version-0.10.5a2

Rated 4 out of 5 stars (31)
1,078 users

PlayFlash 32bit Requires Restart

Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (4)
2,719 users

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 (16)
3,476 users

AutoProxy-ng Requires Restart

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

Rated 4 out of 5 stars (13)
3,574 users

OverbiteFF Requires Restart

Add legacy protocol support back to Firefox and SeaMonkey with OverbiteFF, which restores support for Gopher servers, plus CSO/ph searches, finger, whois and more! Cross-platform JavaScript runs anywhere Firefox does.

Rated 5 out of 5 stars (19)
4,287 users

Mouse Gestures Suite Requires Restart

Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.

Rated 4 out of 5 stars (37)
13,389 users

Extension List Dumper 2 Requires Restart

This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...

Rated 4 out of 5 stars (30)
1,306 users

Quickfile Requires Restart

Quickfile is an extension for Mozilla Thunderbird which initially aimed to speed up filing of messages into your mail folder heirarchy but now includes features for navigation and folder creation...

Rated 4 out of 5 stars (33)
189 users

Size in KB Requires Restart

Use KB for size in the thread pane

Rated 5 out of 5 stars (1)
437 users

French Press

Coffee Cup Ready

Not yet rated
1 user

Disable Add-on Compatibility Checks (Version 40+)

Reinstates the extensions.checkCompatibility preference.

Rated 5 out of 5 stars (2)
644 users

Quitomzilla Requires Restart

Quitomzilla helps you quit smoking while you surf the web or wait for new emails, showing the cigarettes, money and time you have saved since you quit...

Rated 5 out of 5 stars (18)
380 users

superbar Requires Restart

superaddon!

Rated 3 out of 5 stars (3)
9 users

Flashblock Ultimate Alt Zero Requires Restart

This extention allow to remove focus from embedded flash object by pressing Ctrl+Esc or Ctrl+F12 (see mozilla superbug: 78414) and move focus back by Alt+Esc or Alt+F12
USE THIS INSTEAD: https://addons.mozilla.org/en-US/firefox/addon/focus-regainer/

Rated 4 out of 5 stars (2)
69 users

Direct Currency Converter for SeaMonkey

Converts prices from any currency ($, £, etc.) to prices in a selectable currency automatically while browsing.

Not yet rated
26 users

mappviewer Requires Restart

Tools for Meyersound's MAPPonline

Not yet rated
16 users

The Adblocker Project

A powerful ad blocker that blocks ALL ads but ads from publishers who shares revenues with targets YOU choose.

Rated 5 out of 5 stars (1)
21 users