Firefox Vertical Theme

Last updated August 2024 - Supports Firefox 128+

This is designed custom fit for me, so don't expect much configurability. macOS users can take a try before I tested its compability.

Enable firefox vertical tabs

Native vertical tabs are now available in the latest stable version of Firefox.

• Enter about:config in the search box and OK
• Search for: sidebar
• Enable sidebar.verticalTabs and sidebar.revamp
• Restart Firefox

If it is not displayed or is collapsed, open the vertical tabs using the sidebar button, then:

• Click the vertical TAB bar Settings
• Select "Do not Fold"
• Click the vertical TAB Settings again

With the exception of a slightly misaligned ui, native vertical tabs are available. This project is about yo fix these problem.

Installation

0. go to about:config in your URL bar, search for toolkit.legacyUserProfileCustomizations.stylesheets and set it to true

1. locate the firefox profile folder by going to the hamburger menu > help > more torubleshooting information

2. click show in finder or open folder next to profile folder

3. open the highlighted folder (should look something like "13s123f4.default-release")

4. create a folder named "chrome" if it doesn't exist already

5. paste files from repo into this folder, or git clone https://github.com/nathandaven/firefox-paradise-theme.git and restart firefox (command-q/alt-f4 and reopen)

   If you doesn't use the latest version of Firefox, please check the older version in release / tag page.

6. install Tab Center Reborn

7. open the extension settings, enable compact mode, and copy the contents of tab-center-reborn.css into the stylesheet section

8. profit

Screenshots

Windows

Thanks

• CustomCSSforFx
• Firefox Paradise Theme