In Firefox 144, I can open vertical tabs and use Sidebery, but Firefox sidebar remains open on the side. I can remove it by setting always-show and hide-sidebar in config, but it reappears every time I restart.
Is there a way to permanently disable it?
Put the config settings in a
user.jsfile and save it in the root directory of your Firefox profile. It should look something like this:user_pref("always-show.config.setting", false); user_pref("hide-sidebar.config.setting", true);Thank you but it didn’t work.
I wasn’t sure what the actual preference name was so the code I gave you wasn’t accurate. This is exactly what you need in the
user.jsfile:user_pref("sidebar.visibility", "hide-sidebar");It didn’t seem to work the first time I restarted Firefox even though the value for
sidebar.visibilitywas changed correcty in about:config so I edited it back toalways-showand then right back tohide-sidebarand now the sidebar remains hidden on startupEdit: typo
Allow custom sheets true?
I removed sideberry once vertical tabs came along. Any reason to use it over the built in way?
Yes, tabs in Sidebery are “tree style”, you can build them into trees and collapse/expand them, also unload, group, bookmark whole branches and trees.
Vertical tabs are, well, just tabs stacked vertically. They are not nested, do not provide context, can’t be collapsed/expanded (or folded/unfolded, whatever you prefer). Sidebery just has many more features than just “woohoo you can see tabs vertically instead of horizontally” Firefox now provides.
You might want to try CSS mods.
I don’t recall if they have exactly what you’re looking for (I prefer vanilla vertical tabs), but you can always make a request in their GitHub page. MrOtherGuy’s is one of the best Firefox CSS mods collections I’ve seen so far, and it’s regularly updated.
Edit: I think it’s this one? hide_tabs_toolbar_v2.css
Edit 1.5: Remember to have
toolkit.legacyUserProfileCustomizations.stylesheetsset totrueinabout:config. (The GitHub page has more instructions.)i always just dragged the default sidebar all the way to the left to shrink it into a single row. it doesn’t disappear but it at least stays out of the way






