Search Results for tag "color"


ImgViewerPlus(Image Viewer Plus) adds zoom, rotate, flip and light switch capabilities with smooth animations to Firefox image viewer. It also makes background and light colors customizable.

Rated 4 out of 5 stars (19)
761 users

Dark Mode (WebExtension) Compatible with Firefox 57+

A global dark theme for the web

Rated 4 out of 5 stars (208)
34,219 users

VivaldiFox Compatible with Firefox 57+ Featured

An add-on that allows colouring Firefox in a Vivaldi style fashion.

Rated 5 out of 5 stars (175)
2,626 users

Dark Background and Light Text Compatible with Firefox 57+

Makes every page (or only pages that you want) to have light text on dark background. Exact colors are customizable.

Rated 5 out of 5 stars (437)
50,418 users

Color Picker Compatible with Firefox 57+

Search for the perfect color via an stylish color picker in a popup.

Not yet rated
247 users

CaretTab - New Tab Clock and Date Compatible with Firefox 57+

A beautifully simplistic New Tab page that includes multiple clocks, date, search, quick links, and more! Fully customizable!

Rated 5 out of 5 stars (18)
900 users

Foxfiltre Requires Restart

Adds a many graphic filters to the main context menu.

Not yet rated
53 users

HTML5 Video Tag Enhancer Compatible with Firefox 57+

Color Adjustment/EQ/Chorus/Delay/Reverb/Playback Rate/Loop/Always on top

You should see a icon in the address bar of your browser if there are any video tags on your page.

----doesn't work?--
please reload page

Rated 5 out of 5 stars (2)
168 users

Page Shadow Compatible with Firefox 57+

An extension for Chrome/Chromium, Firefox, Opera and Edge designed to render a web page more readable in a dark environment by decreasing page brightness or by increasing page contrast. This extension also have a night mode and others tools.

Rated 5 out of 5 stars (14)
549 users

FlagTab Requires Restart

Mark/flag tabs via an unlimited amount of customizable colors. Quickly group and bookmark tabs based on color. Persistently label/color tabs by url/regex. Other optional features: relative tabs, highlight unread tabs, color favicon, and auto-flag.

Rated 3 out of 5 stars (49)
19 users

AvantGarde Requires Restart

Take Firefox to the next level.

Rated 5 out of 5 stars (81)
3 users

Screen Dimmer Requires Restart

Darken any web page to reduce eye strain and increase comfort

- Change overlay color
- Increase, decrease or reset overlay with right mouse click or keyboard controls

Ctrl+Alt++ to darken
Ctrl+Alt+- to brighten
Ctrl+Alt+0 to reset

Rated 4 out of 5 stars (27)
791 users

Switch Message Colour Requires Restart

Adds a Toolbar-Button to Thunderbird to switch between the mails' original colouring and your user defined colouring.

Not yet rated
241 users

Highlighter Requires Restart

Allows you to highlight text on a webpage by selecting it and clicking 'Highlight' on the popup menu. If you hold down the Shift key while opening the popup menu, a sub-menu appears with more advanced options...

Rated 4 out of 5 stars (71)
15 users

Invert Image Compatible with Firefox 57+

The addon inverts color of an image to black for night reading

Rated 5 out of 5 stars (2)
85 users

Native Dark Compatible with Firefox 57+

Native Dark mainly replaces the default themes of Firefox, because the light theme was adaptive in the titlebar and not the tabs. It allows for the same adaptive titlebar as the default light theme but combines the aesthetic of the dark theme's tabs.

Rated 5 out of 5 stars (11)
224 users

Rainbowpicker Requires Restart

Pick any color of the...

Rated 4 out of 5 stars (17)
368 users


IME の状態を色でお知らせします。

Rated 5 out of 5 stars (5)
324 users


Make your browser unique by adding a splash of color.

Rated 4 out of 5 stars (19)
379 users

Highlights Requires Restart

Highlights, is an ultra-light-weight (18 KB) multi-color highlighting tool to highlight text on web pages with a right-click. Highlights are saved in a user-defined folder and saved highlights are automatically loaded when page is revisited.

Rated 3 out of 5 stars (18)
9 users