Firefox CSS theme with minimal vertical tabs sidebar based on Sidebery.
- Sidebery
- Set toolkit.legacyUserProfileCustomizations.stylesheets to true.
- Download userChrome.css from /chrome and add to Firefox user profile folder under /chrome.
- Install Sidebery addon in Firefox from Firefox Addon Store.
- Download sidebery.json, install Sidebery addon in Firefox and load sidebery.json it in Sidebery settings.