Yes. I'm an avid qutebrowser user, and I have a voracious appetite for learning, reading, and perpetually unfinished projects. So I created a tool to help me organize information in qutebrowser very effectively and I use it daily. It's basically like OneTab but for qutebrowser. The entire UI is just HTML files, since they're browser native and simple, and can be opened in any browser you like. No unneeded complexity.
I also wrote a little script for converting Firefox open tab export text files into HTML compatible with this tool, I haven't published it yet, I want to implement doing that with chromium based browsers as well before I do, but it will basically enable you to import your open chromium and Firefox tabs as sessions in tab-manager in qutebrowser, and it's not limited to that, since it's just HTML you can open it in any browser you like. If you care about that just check my codeberg in the future some time and see if it is there.
https://codeberg.org/mister_monster/tab-manager/
I also wrote a little script for converting Firefox open tab export text files into HTML compatible with this tool, I haven't published it yet, I want to implement doing that with chromium based browsers as well before I do, but it will basically enable you to import your open chromium and Firefox tabs as sessions in tab-manager in qutebrowser, and it's not limited to that, since it's just HTML you can open it in any browser you like. If you care about that just check my codeberg in the future some time and see if it is there.