Extensões melhor avaliadas


QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Avaliado em 5 de 5 estrelas (109)
23.841 usuários

Theme Font & Size Changer Não precisa reiniciar

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Avaliado em 5 de 5 estrelas (153)
93.498 usuários

Classic Toolbar Buttons Não precisa reiniciar

'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!

Avaliado em 5 de 5 estrelas (144)
39.680 usuários


Word translation in tooltip with English⟷Croatian dictionary already incorporated.

Avaliado em 5 de 5 estrelas (59)
4.983 usuários

Add-ons Manager Context Menu

Add more items to Add-ons Manager context menu.

Avaliado em 5 de 5 estrelas (32)
14.801 usuários

Copy Plain Text 2

Copia texto selecionado removendo sua formatação.

Avaliado em 5 de 5 estrelas (64)
45.745 usuários


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

Avaliado em 5 de 5 estrelas (39)
16.081 usuários


Persistent sticky notes for Thunderbird associated to mails.
This is a port to Thunderbird >= 3 and Seamonkey >= 2 based on XNote 2.1.0 ( https://addons.mozilla.org/en-US/thunderbird/addon/3093 ) with bugfixes and additional features.

Avaliado em 5 de 5 estrelas (64)
17.386 usuários

NewScrollbars (aka NoiaScrollbars)

The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes".

Avaliado em 5 de 5 estrelas (98)
15.341 usuários

GNotifier Não precisa reiniciar

Add-on for Firefox and Thunderbird. Integrates Firefox's notifications with the OS's native notification system. It supports most Linux desktops and Windows 8.

Avaliado em 5 de 5 estrelas (46)
11.588 usuários


Scrolls the page smoothly when scrolling the mouse wheel (or keyboard arrows if enabled).

Avaliado em 5 de 5 estrelas (251)
42.486 usuários

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

Avaliado em 5 de 5 estrelas (134)
23.119 usuários

Adblock Plus Não precisa reiniciar Em destaque

Chateado com as propagandas? Incomodado com o rastreamento? Irritado com os banners? Instale agora o Adblock Plus para recuperar o controle da internet e mudar a maneira como você vê a web.

Avaliado em 5 de 5 estrelas (4.989)
21.690.319 usuários

FlashGot Mass Downloader

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

Avaliado em 5 de 5 estrelas (504)
930.921 usuários

Extension Auto-Installer Não precisa reiniciar

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.

Avaliado em 5 de 5 estrelas (15)
3.691 usuários


Hide title bar if window is maximized.

This extension created only for GNOME 3. It can create problems with another DE (KDE, XFCE, etc). However, you can use HTitle at your own risk (need enable "legacy" mode on settings page).

Avaliado em 5 de 5 estrelas (96)
9.396 usuários


CantoFish is a popup Cantonese-English dictionary for Firefox. It contains over 200,000 entries and works with both traditional and simplified Chinese characters. The Yale and Jyutping romanization systems are supported, as well as Mandarin pinyin.

Avaliado em 5 de 5 estrelas (23)
661 usuários

Add-ons Manager - Version Number Não precisa reiniciar

Restores add-on version number inside Add-on Manager for latest builds of Firefox, Thunderbird and Seamonkey.

Avaliado em 5 de 5 estrelas (14)
905 usuários

Search Results Sort By Date Not Relevance

Makes search results sort by "date" instead of "relevance" by default.

Avaliado em 5 de 5 estrelas (14)
2.677 usuários

uBlock Origin Não precisa reiniciar

Finally, an efficient blocker. Easy on CPU and memory.

Avaliado em 5 de 5 estrelas (313)
561.642 usuários