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ImportExportTools Requires Restart

Adds some tools to import and export folders and messages

Rated 4 out of 5 stars (250)
9,376 users

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Session Manager

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Rated 5 out of 5 stars (850)
171 users

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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 (24)
63 users

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ChatZilla Requires Restart

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Rated 4 out of 5 stars (150)
14,573 users

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Contact Photos Requires Restart

Displays contact photos in the message header.

Rated 4 out of 5 stars (31)
99 users

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Lightbird Requires Restart

Standalone calendar UI for Lightning

Rated 4 out of 5 stars (21)
162 users

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PlayFlash 64bit Requires Restart

Flash player plugin - unofficial xpi repack for 64bit 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 (32)
41 users

Download for Windows

Disable Addon Compatibility Checks (Version 4-56)

Reinstates the extensions.checkCompatibility preference.

Rated 4 out of 5 stars (6)
43 users

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Diagnostics for Adblock Plus

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

Rated 3 out of 5 stars (4)
68 users

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Extension Auto-Installer

Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.

Rated 5 out of 5 stars (48)
3 users

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Join-NG Requires Restart

Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".

Rated 5 out of 5 stars (5)
926 users

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Flexible Identity Requires Restart

Selects an identity based on the recipients list when sending an email

Rated 4 out of 5 stars (39)
255 users

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BOINC Stats 2 Requires Restart

Displays your Total and Recent Average Credits for BOINC distributed computing projects in the status bar.

Rated 5 out of 5 stars (2)
0 users

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TimerFox Requires Restart

Easily counts down from a predefined number and alarms you when the count has reached zero.

Rated 4 out of 5 stars (21)
1 user

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Custom Sender Address and Reply Requires Restart

Select sender mail address based on the recipient and reply with the same address

Rated 5 out of 5 stars (2)
20 users

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