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Bad news is that it is not clear at this point whether Mozilla is going to go forward with the implementation. A post on Reddit by one of the project members suggests that the build is a "rough proof-of-concept". Some features tested in the build "did not survive". It is unclear which did not, as they are not mentioned. Mozilla is, however, implementing those that survived the cut into Firefox. Again, the poster does not mention which those are. It is also not verified that the poster is actually a member of the project team, so take this with a grain of salt as well.

I use Edge on my work computer since I can log into it with enterprise SSO and store my passwords and bookmarks to my work account. Not ideal, but I don't do anything personal on my work computer because I already have zero expectation of privacy on it anyway.

Vertical Tabs are an absolute game-changer, especially combined with tab groups. I can actually juggle hundreds of tabs in a single browser window without issue. It's the only thing I can say that Edge got right.

I've been waiting for this development for a long time. I can't wait to have this functionality on my personal computer, on a privacy-respecting FOSS browser no less. The extensions currently available for this are just not that great, it has to be a native feature.

i wish they'd include vertical tabs and oneline navbar in settings rather than making the users edit userchrome. userchrome is really fun but it'd be much more accessible if it was on settings.

Alright, now do bifurcating diagonal tabs.

Never saw the appeal in vertical tabs, but maybe Edge or FF extensions just don't do them well enough... Good for Mozilla though, I guess

Those screenshots look really nice, ngl, hoping this goes through. Edge and Vivaldi have had their own vertical tab implementations for a while now, and there are Firefox forks that show it can be done. No reason for base Firefox not to have it at this point.

While I'm here, Mozilla bring back compact spacing, plz k thx.

Edit: Just tried it, it's got that nightly jank but it's promising. I hope Mozilla continues with this. It looks and feels great.

Literally the only thing I wanted!! 💚

congratulats to the people liking them i guess. i personally dont get it, since most languages are written horizontally and i like ux to reflect this structure. such things are subjective though

My dream would for this to at least have an option for collapsable tree-style tabs. That's what I'm missing the most from the Edge implementation. Even "normal" vertical tabs struggle when you have over a hundred open tabs.

I completely hid my tabs with custom css and I'll never go back. With something like vimium-c you can switch tabs with vim-like bindings and an fzf-like menu. If you have lots of tabs, the fzf way is way faster to pick out a specific tab than it is to look for it in a tab row (or column). If you have few tabs, you don't even need to see them to know where they are. I'm being very serious. Tabs are bloat. I recommend trying it out if it is something for you.

(edit) On top of that, it looks so clean. You get a bit more space for the actual content (I also hide my url bar, it pops up when you use it). It fits right in with a keyboard focus workflow, you get consistent keybindings across vim and your browser (I use the same keybinds for switching buffers in vim so it feels the same).

anyone else feel like a lot of these firefox updates recently are just them implementing the most popular extensions from firefox 3.6?

I migrated from Edge for the last time to avoid Manifest v4, I’ve been missing vertical tabs a lot. Sidebery just didn’t work for me. I really like how this is looking.

I would love the option of keeping containers in vertical tabs with "page tabs" horizontal. For example; Facebook, Personal, Banking, Work, Incognito, etc containers along the left as vertical tabs, and each one has all the pages in tabs across the top. Vertical tabs only appear after you open more than one type of container.

I tried so hard to get used to vertical tabs, and failed miserably. I just can't like them. Lol

Yesss come on! I moved to Edge at my place of work because I can no longer see what I'm doing with horizontal tabs. And we can't use addons in Firefox.

This will land in ESR in three years time and then we'll be rolling...

And to round out this story, here’s a photo that we think evokes the concept of “vertical”.

I was just today trying FF again and discovered vertical tabs was via extension only and holy shit disabling the tabs up top looked like a bit of work. Native vertical tabs and grouping and I'm back. It should just copy the layout that Edge does.

Shit just got real

Waterfox beating it to the punch lol

V E R T I C A L S U P R E M A C Y

I just spent 3 days learning a basic level of css and messing around in my userchrome and NOW they decide to add it...