No problem! Tree Style Tabs might also do the job on base Firefox with nested tabs, but it’s not as streamlined as Pulse or Edge, especially if you want to hide the tab bar (you have to edit .CSS files).
edit: okay enabling both features, moving the main side panel to the right and enable tab collapsing makes a great space-saving setup.
Thank you for mentioning a non-chromium browser with vertical tabs, genuinely something FF would benefit from.
No problem! Tree Style Tabs might also do the job on base Firefox with nested tabs, but it’s not as streamlined as Pulse or Edge, especially if you want to hide the tab bar (you have to edit .CSS files).
edit: okay enabling both features, moving the main side panel to the right and enable tab collapsing makes a great space-saving setup.
edit 2: now i’m using pulse as my main browser