Version 2.0:
- fixed the issue with not all tabs being received into the same window (two windows are often created)
- converted addon to manifest v3
- changed min. Firefox ESR version to 115

Version 1.3
- hotfix release to address new Firefox bug which breaks received tabs:
https://bugzilla.mozilla.org/show_bug.cgi?id=1779277

- fixing strange bug in Firefox which breaks tabs send to device if they are moved to own window too fast (I guess...). They will look OK, but they can't be duplicated anymore and won't survive restart! Delaying the operation should help.
- this version 1.2 is now using non-persistent background script

- fixed proper grouping multiple send tabs into one window (race condition)