Appearance and Customization

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Personas Plus

Personas (now known as lightweight themes) are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite themes.

Rated 3 out of 5 stars (929)
7,911 weekly downloads

Forecastfox (fix version)

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Now Available for: Firefox, Thunderbird and SeaMonkey!

Rated 5 out of 5 stars (201)
3,191 weekly downloads

Website to PDF

Convert the current webpage into a PDF file!

Just for now - get also a PRO version for FREE!

Rated 1 out of 5 stars (1)
2,714 weekly downloads

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

Rated 5 out of 5 stars (175)
2,340 weekly downloads

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (8)
1,331 weekly downloads

No need flash plugin on embeded youtube movies No Restart

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (2)
1,278 weekly downloads

Lightweight Themes Manager No Restart

Manage your installed personas (lightweight themes).

Rated 5 out of 5 stars (9)
1,161 weekly downloads

NoiaButtons No Restart

The 'NoiaButtons' add-on offers cartoonish toolbar button icons (known from Noia themes) for default theme and lightweight themes. Further more lite silver and dark versions of Noia themes are included.

Rated 5 out of 5 stars (14)
917 weekly downloads

Lightning Calendar Tabs

Displays tabs which allows quick navigation between time periods in Lightning calendar. All views of calendar are supported. Color of tab texts can be adjusted.

Rated 4 out of 5 stars (8)
907 weekly downloads

Firesizer

Allows you to resize the window to specific dimensions.

NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.

Rated 4 out of 5 stars (129)
813 weekly downloads

Send Later Button

A simple button to invoke the (already existing) send later functions.

Not yet rated
797 weekly downloads

Color Folders

Color your Folder Treeview Icons!

Rated 4 out of 5 stars (142)
707 weekly downloads

HTitle (discontinued)

Hide title bar if window is maximized.

[!] This add-on has been discontinued.

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

Rated 5 out of 5 stars (104)
597 weekly downloads

GNotifier No Restart

Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.

Rated 5 out of 5 stars (13)
401 weekly downloads

Noia Fox options

Options manager and fixes for Noia Fox theme 3.x.x

Rated 5 out of 5 stars (15)
370 weekly downloads

Tab Wheel Scroll No Restart

Switch tabs by scrolling with the mouse wheel in the tab bar.

Rated 4 out of 5 stars (113)
351 weekly downloads

Add-ons Manager - Version Number No Restart

Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (18)
273 weekly downloads

Tag Toolbar

Add toolbar for toggling tags.

Rated 4 out of 5 stars (45)
259 weekly downloads

OutlookAlike BETA

Makes Thunderbird looking like Outlook.

Rated 4 out of 5 stars (29)
253 weekly downloads

Element Inspector No Restart

In the DOM Inspector,quickly navigate to the any elements

Rated 5 out of 5 stars (28)
248 weekly downloads