Doesn't save inactive or unloaded tabs, only the one tab that has been accessed within the last two or three minutes. Useless, unless you are willing to touch every single tab manually to activate it - but at that point you could simply share it instead of using an extension.

Doesn't Work in LM22.2

Installable in Android Firefox, *does not do anything*.

No .txt file is created, that my File Commander app can find, anywhere.

I tried telling it to open it right afterwards, and that just opened a file-browser, but there was no .txt file to open, so that was pointless.

Firefox removed our ability to bookmark all tabs, a few years ago ( possibly by breaking all the existing addons ), and we STILL need this functionality.

Maybe this works only on some specific operating-systems?

It doesn't work here, though.