@shodan you should now be able to manage all windows from Firefox View. If you select 'View all' in the open tabs section, it displays all open windows.
Let us know if you're looking for any additional functionality.
I would also like a seamless operation between tabs and bookmarks
Suppose I take all these "portableapps" tabs
I would like to "move" them to a bookmark folder.
I have noticed this action is cumbersome and unreliable.
Sometimes I will try to bookmark a few hundred tabs and some tabs will not make it to the bookmark folder.
I would like a "move to bookmarks" which does both "bookmark then close" in a single operation but also that makes sure the bookmark has been created before closing the tab, it should be a reliable operation.
And this is getting outside the scope. But if I save many tabs to a bookmark folder, I might want to re-open all these bookmarks at once.
This is currently very difficult.
If you open 300 tabs, they will all load immediately and really hurt performance.
I have tried the "LoadAfterSelect3" addon, unfortunately, the way it prevent immediate loading is by creating special tabs, which have weird moz:// URLs which make them unsearchable and unfilterable.
There should be a way to open tabs without loading them. Or loading tabs in a throttled manner, say one every 5 second, or maximum 30 tabs per minute.
Think of what happens when you open 1300 aliexpress tabs. Just doing that will trigger their anti-bot defenses and will require going to every single tabs and doing the captcha.
And, to get totally off the track here, it should be possible to save the full tab data in the bookmarks.
I know this is sounds like a crazy idea, but I'm sure in 10 years, every single browser will have this feature.
I should be able to just load my saved tabs and pick up where I left off, because loading 2000 tabs is quite a chore right now.
I have a lot lot lot lot more to say about improving firefox. If you tell your new CEO about tell him this, I want Mixtral 8x7B, in firefox, using my GPU, on my airgapped offline system and I want to ask this model questions about the 5000 fully loaded tabs in my browser. Also, you should think of tabs as micro-virtual machines.