Appearance and Customization


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 (933)
7,875 weekly downloads

Forecastfox (fix version) Requires Restart

Get international weather forecasts from 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 (214)
3,330 weekly downloads

Menu Wizard Requires Restart

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 (185)
2,838 weekly downloads

Simple Locale Switcher Requires Restart

An easier management of the user interface language

Rated 5 out of 5 stars (8)
2,024 weekly downloads


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 (16)
1,716 weekly downloads

Lightweight Themes Manager

Manage your installed personas (lightweight themes).

Rated 5 out of 5 stars (11)
1,186 weekly downloads

No need flash plugin on embeded youtube movies

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (2)
1,106 weekly downloads

Lightning Calendar Tabs Requires Restart

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)
981 weekly downloads

Firesizer Requires Restart

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 (131)
925 weekly downloads


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 (17)
881 weekly downloads

Color Folders Requires Restart

Color your Folder Treeview Icons!

Rated 4 out of 5 stars (145)
818 weekly downloads

HTitle (discontinued) Requires Restart

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 (110)
712 weekly downloads

Website to PDF Requires Restart

Convert the current webpage into a PDF file!

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

Rated 1 out of 5 stars (3)
431 weekly downloads

Noia Fox options Requires Restart

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

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

Tab Wheel Scroll

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

Rated 4 out of 5 stars (121)
364 weekly downloads

Tag Toolbar Requires Restart

Add toolbar for toggling tags.

Rated 4 out of 5 stars (47)
290 weekly downloads

OutlookAlike BETA Requires Restart

Makes Thunderbird looking like Outlook.

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

Hide Local Folders Requires Restart

Removes the "Local Folders" entry from the folder pane.

Rated 4 out of 5 stars (19)
283 weekly downloads

Element Inspector

In the DOM Inspector,quickly navigate to the any elements

Rated 5 out of 5 stars (29)
266 weekly downloads

Lightning Colors Reminder Requires Restart

Let's show the calendar color on Lightning reminders!

Rated 5 out of 5 stars (1)
262 weekly downloads