Any chance we could see something like this in Pulse Browser or is that something that just requires touching too much of the underlying code base to be viable? ^^
Please not just vertical, I need my trees. Sidebery works pretty well though. Sometimes updates are a little delayed, but it's not very bad. Native support and optimizations for Sidebery should do the trick.
This would be huge for me. I can't really move away from Edge for productivity/work use cases until I have vertical tabs to a comparable usability in another browser.
Vertical tabs are indeed big for me, but I’ll add that it’s critical that it be possible to hide the unnecessarily huge and ugly sidebar header, which is the biggest problem plaguing vertical tab extensions on Firefox. Right now that requires userchrome edits which is ridiculous.