Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable.

Dark Background and Light Text - Customizable Firefox Add-On
Dark Background and Light Text is a user-friendly Firefox add-on that allows users to customize their browsing experience. With a few clicks, users can change the background of any webpage to a darker shade and the text to a light color. This gives a unique contrast that can help in reducing eyestrain and facilitating reading. Designed with practicality and user convenience in mind, any color variation of the page display is customizable.
Add-on stats
Rating: 4.46
1 new ratings
(1,076)
Creation date: 2014-03-27
Weekly download count: 1,129
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood:
Manifest version: 2
Permissions:
- <all_urls>
- tabs
- storage
- browserSettings
- webRequest
- webRequestBlocking
Size: 87.04K
Email: ad*****@khvoinitsky.org
Ranking
# 410 ▲ 1
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary
Changing the look of web pages is easy with Dark Background and Light Text. Access controls from the button in the toolbar menu to customize the display of any page.
Submit bug reports and feature requests to [email protected] Or create an issue on github if you have a github account.
If you'd like to support the development of the extension, consider donation:
- Patreon: https://www.patreon.com/m_khvoinitsky
- Flattr: https://flattr.com/@m_khvoinitsky
- Bitcoin: 1PDw93kYHbHjLFs4QRpMwQzoEtyXM7sA15
- Litecoin: LMcdB5zGpDHdkX6aaBv8EX9qsvk99ga7kB
- Ethereum: 0xabBD6B179177e06C010218697e45243CBbF42De8
- Monero: 43mSrRQYGuSa1x76gMXH2KRSmADmRLjoFQdGfN66hG3rXsRwd69aNKdeodmsVsD2oLdnVAsmYyaAGfQ3uT923CBCLyavk1J
User reviews
Pros
- Best dark theme extension overall
- Easiest to control colors
- Works on 100% of sites in at least one mode
- Lightweight compared to other extensions
- Positive long-term user experience
Cons
- Causes issues with Amazon Prime Video
- Can make some websites load improperly or in broken format
- Slow down page loading for certain sites
- Lacks export and import option settings
- Can make webpages look awful
Most mentioned
- Cripples Amazon Prime Video
- Issues with webpage loading and performance
- Works on most sites with some hiccups
- Lightweight and user-friendly color control
User reviews
ive tried many dark mode extensions for firefox as i have migraines. this is THE most well-done that ive seen so far. no weird lines around photos. no ugly looking links. just simple to use and nice to look at.
by thepunkwolf1312, 2025-02-04
by plantmummae, 2025-01-30
by Firefox user 14601785, 2025-01-28
Add-on safety
Risk impact
Dark Background and Light Text requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
Dark Background and Light Text has earned a good reputation and can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
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