Miscellaneous

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Disable Auto-update

Disable Auto-update feature of Firefox and Thunderbird.

Rated 5 out of 5 stars (2)
838 users
Updated August 30, 2015

FoxClocks No Restart

FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

Rated 4 out of 5 stars (306)
66,886 users
Updated August 29, 2015

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 (217)
78,498 users
Updated August 29, 2015

Only Minor Update

Applies only minor updates of the application.

Not yet rated
142 users
Updated August 28, 2015

Force Addon Status

Provides ability to change status of specific addon (enabled/disabled).

Not yet rated
2 users
Updated August 28, 2015

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 (144)
39,349 users
Updated August 28, 2015

ICS Inspector

This extension provides many debugging options related to calendar development. This includes showing the ics data for an event or calendar, evaluating javascript on an event or calendar, and some menu options for debugging.

Rated 4 out of 5 stars (1)
792 users
Updated August 27, 2015

ThunderStats! Your Thunderbird Statistics!

This addon adds awesome statistics to your beloved Thunderbird!

Rated 4 out of 5 stars (1)
133 users
Updated August 27, 2015

Mail Redirect Featured

Allow to redirect (a.k.a. "bounce") mail messages to other recipients.

Rated 4 out of 5 stars (123)
30,128 users
Updated August 26, 2015

Auto Resize Image

Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).

Rated 4 out of 5 stars (22)
12,089 users
Updated August 24, 2015

BugFlags

Lists the request flags for a specified requestee

Not yet rated
5 users
Updated August 23, 2015

Reinstall Last Installed Add-on No Restart

One-click reinstall last installed addon, useful when developping restartless addon

Not yet rated
1 user
Updated August 23, 2015

Extension List Dumper 2

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 (9)
70 users
Updated August 23, 2015

ImportExportTools

Adds some tools to import and export folders and messages

Rated 4 out of 5 stars (125)
301,767 users
Updated August 22, 2015

Kapaza Feed

Receive Kapaza ads as any RSS items.

Not yet rated
1 user
Updated August 22, 2015

UxU - UnitTest.XUL

This is a testing tool for addon developers.

Rated 3 out of 5 stars (5)
15 users
Updated August 22, 2015

Calendar Tweaks

Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.

Rated 4 out of 5 stars (52)
13,757 users
Updated August 18, 2015

Rise of the Tools No Restart

Moves the toolbar back above the tabbar.

Rated 5 out of 5 stars (54)
3,541 users
Updated August 17, 2015

Restart

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

Rated 5 out of 5 stars (37)
13,991 users
Updated August 14, 2015

Profile Folder Button

Adds profile folder/directory button.

Not yet rated
997 users
Updated August 14, 2015