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No Resource URI Leak Nevyžaduje restart

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

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Hide Menubar

Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.

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10 450 uživatelů

Custom Address Sidebar

Allow you to help address sidebar more useful.

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7 181 uživatelů

Address Move Button

Allow you to add a Address Move Button to mail compose window.

5 015 uživatelů


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

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MarkSubfolders New

Mark all read for Subfolders

It's the same like MarkSubfolders but it's compatible with Firefox 4 and later.

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Address bulk copy (アドレス一括コピー)

Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。

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2 322 uživatelů

Dorando keyconfig

A modified Dorando's tool to rebind keys in Mozilla apps. It is designed to be a drop-in replacement, and will keep your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) works again!

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Check Domain


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2 976 uživatelů

Menu Wizard

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

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51 317 uživatelů

Yet Another Remove It Permanently

Remove elements and block content on Web pages.

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2 311 uživatelů

WebDAV for Filelink

Adds the possibility to use a WebDAV store for Filelink. With this extension you can link attachments to a WebDAV service, for example as provided by Apache's mod_dav or some public services.

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2 230 uživatelů


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

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2 700 uživatelů

Flex Confirm Mail

Confirm mail address and attachments based on flexible rules.

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10 721 uživatelů

Address Close Button

Adds a Address Close Button to mail compose window.

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16 006 uživatelů


Abilita la gestione alternativa degli allegati P7M

2 882 uživatelů

MRC Compose

Remplace la liste d'adresses par les champs standards (Pour, Copie à, Copie cachée à) avec l'autocomplétion.
Provides standards fields (TO, CC, BCC) with autocomplete to Thunderbird's compose pane.
For bug reports, please use support email.

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French Dictionary for Spelling

Supports also the Nighty browser! This is a French Spelling dictionary, for finding spelling mistakes.
Select a text in French appearing on any web page and get a spelling check for it immediately!

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5 454 uživatelů

Keyword Highlight



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