“Updated README”

Tab Stash seems to be what you’re looking for.

Thanks! I wrote that when on mobile, so I didn’t think to add instructions 😅. Also, if the user needs to allow some cookies, they can be set at Settings > Privacy & Security > Cookies & Site Data > Manage Exceptions.

Is to prevent that that you configure UBO in medium mode. Since many cookie banners are loaded by a 3rd party script, they’re blocked by UBO when configured this way. For the rest I use one of the “Annoyances” filter that come preinstalled. Since the time I adopted this method (~3 years) I think I can count the number of cookie banners I’ve seen with the fingers of one hand.

Configure uBlock Origin in medium mode and set Firefox to delete cookies on quitting. Easy.

I’ve been using Firefox Vertical Tabs since 1 or 2 years ago and my experience has been satisfactory. Now, I’m not a vertical tabs power user or something like that, and if suddenly I cannot use them anymore I can go back to use horizontal tabs without much problem. At this point I’m just accustomed to them, but they’re not an integral part of my workflow.