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10 Best Dark Mode Reader Firefox Add-Ons

by Sudip
dark mode reader firefox add ons

Although Firefox doesn’t have as big a user base as Google Chrome, many people use it to read websites, watch videos, etc. If you spend a lot of time inside Firefox, dark mode might keep your eyes happy. It also helps sleep at night. Nowadays, it is possible to get a dark theme/mode in almost any app and browser, including Mozilla Firefox. If you want to explore more, check out the following list of the best dark mode reader Firefox add-ons for everyday use.

Dark Mode Reader Firefox Add-Ons

It’s not like you have to use all of them. Instead, you try a few and decide which Firefox dark reader add-on works best for you best.

1. Wikipedia Dark Mode

As the name says, the Wikipedia Dark Mode add-on for Firefox enables dark mode only on the official website of Wikipedia. In case you spend a lot of time reading Wikipedia articles for any reason and want to get an environment that doesn’t give you eye strain, you can get this add-on. It is the most straightforward add-on as you cannot find an option to customize the interface. After installing, you can open any Wikipedia page to find the dark reading interface.

enable dark mode on wikipedia in firefox


  • Only works on Wikipedia
  • No direct option to on or off dark mode
  • No option to customize settings
  • No dim image option

Get Wikipedia Dark Mode for Firefox

2. Dark Theme for YouTube

Although there is a native option to enable dark mode on YouTube, you can use this browser add-on to get the same. At times, it can be hectic to reply to all the comments on your YouTube video, and eventually, it might hurt your eyes too. Therefore, you can use the Dark Theme for YouTube Firefox add-on to enable theme dark if you do not like to use the in-built option for any reason.

turn on dark mode on youtube


  • No option to customize
  • One-click enable/disable
  • Works perfectly on YouTube
  • It doesn’t dim video brightness

Get Dark Theme for YouTube

3. Turn Off the Lights for Firefox

Before knowing about the features, you should know that this dark reader add-on for Firefox offers a ton of options to customize the interface. Although it doesn’t initially turn your webpages into black and white, it dims the brightness to a lower level reducing eye strain. There is a handy icon to enable or disable the functionality. However, if you customize the add-on, you will get a much better experience.

turn off the lights for firefox addon

You can schedule the add-on, create a whitelist/blacklist of sites, and change text, hyperlink, and background color, etc. The most important feature is that you can enable dark reading mode on a particular webpage instead of doing the same on the entire website.


  • Easy to set up
  • Customizations
  • Option to dim webpage
  • Schedule
  • Apply only on single webpage instead of sitewide

Get Turn Off the Lights for Firefox

4. Super Dark Mode

Like most of the other Firefox dark reader add-ons on this list, it offers a few options to manage everything from your end. For example, you can schedule dark reader mode in Firefox so that you can save some time, quickly turn on/off the dark mode, etc.

super dark mode settings on firefox

It offers some specialized dark mode for some preset websites like YouTube, Facebook, Reddit, etc. However, if you want to apply the same dark mode instead of a different one, you can do that from the Preferences. On the other hand, it is possible to customize each dark mode type according to your requirements.


  • Specific dark mode for each website
  • Auto turn on/off dark reader mode

Get Super Dark Mode for Firefox

Read: How to Enable Dark Mode on WhatsApp Web

5. Owl

Owl is another dark reader Firefox add-on that you can use to apply dark mode in Firefox. Whether you read articles or edit documents on Google Docs, you can get a dark reading environment for anything. One cool feature is that you can turn on dark mode for local PDFs that you can open with Firefox browser.

owl best dark mode reader firefox add-ons

You can create a whitelist/blacklist of sites, enable dark mode automatically at startup, apply classic themes on specific websites, etc.


  • Enables dark reader mode for local PDFs and documents
  • Add sites to whitelist and blacklist
  • Enable Owl at startup automatically
  • No option to schedule

Get Owl for Firefox

6. Dark Mode Ultimate

Dark Mode Ultimate is almost identical to Super Dark Mode in terms of features. However, the former Firefox add-on offers an option to customize preset dark modes for a specific website where this one doesn’t have that dedicated option. That said, you can apply different dark modes on different websites, and it is possible to enable or disable them from the Preferences.

dark mode ultimate settings for firefox

The dark mode works flawlessly on almost any website. As it doesn’t use the ‘invert colors’ method, you will get a better reading experience even after enabling the dark reading mode using this add-on.


  • No option to schedule
  • Apply different dark modes on different websites
  • Whitelist a website to use a regular theme
  • One-click enable/disable
  • Better reading experience as doesn’t invert colors

Get Dark Mode Ultimate for Firefox

7. Dark Background and Light Text

It offers complex options to provide a better dark mode experience on Firefox. Dark Background and Light Text allows users to choose a custom color for background, text, hyperlink, etc. There are several dark mode options for each website – Invert color, Stylesheet Processor, Simple CSS, etc. For your information, these are just some fancy names for different stylings.

dark background and light text settings panel


  • No option to schedule
  • Create custom dark mode theme
  • One-click enable/disable
  • Invert colors

Get Dark Background and Light Text for Firefox

Read: 7 Best Bookmark Organizer for Firefox to Better Manage Links

8. Dark Theme

If you do not install this add-on, you will never know how many types of dark themes/modes there can be. It offers more than forty kinds of dark modes, allowing users to switch between them to get a better interface while reading articles for longer durations.

dark theme settings panel on firefox

The frontend shows only one option to turn on or off dark mode. However, if you want to customize the brightness, contrast, or overall dark theme preferences, you must open the respective settings.


  • More than 40 types of dark modes
  • Apply dark mode on a specific website
  • One-click enable/disable

Get Dark Theme for Firefox

9. Dark Mode

Dark Mode presents almost all the features as the Dark Theme add-on for Firefox. The number of dark mode types, features, options, etc., are nearly the same in both dark reader add-ons. In other words, it is the same product in a different package.

dark mode add on settings on firefox browser

Talking about the features and options, you can have a vast number of dark mode types (textures, different color variants, etc.). It is also possible to create a custom theme for all websites. Regarding compatibility, it works on almost any website a regular user opens to read articles or watch videos.


  • No option to dim images on a webpage
  • One-click turn on/off
  • Separate theme for a specific website
  • Custom dark mode type

Get Dark Mode for Firefox

10. Dark Reader

Dark Reader is probably the best dark mode Firefox add-on, allowing users to create a better environment for reading. Like the Google Chrome edition, it works flawlessly on Firefox. For example, there is brightness and contrast management, grayscale, the keyboard shortcut to toggle between modes, etc. You can also create a list of sites you do not want to enable the dark mode on.

dark reader best dark mode extension for firefox


  • Keyboard shortcut for enabling/disabling
  • Custom brightness and contrast
  • Site-specific settings
  • Import/export settings

Get Dark Reader for Firefox

Wrapping up: Dark Mode Reader Firefox Add-Ons

If you do not want to get eye strain by looking at bright computer monitors for a long time, it is better to use a dark mode reader add-on in the Firefox browser. We have covered plenty of add-ons that offer different options according. It is recommended to check them before moving on with one.

Read: How to Enable Dark Mode on the Chrome Browser

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