Feature request: remain on singular regex matched tab

[githubforgetmenot]

Greetings!

I am using this addon with (gnome) taskbar shortcuts, which match the firefox window and send key events to hotkey tabs in order to bring up a firefox tab(s) with the specified domain. (Not ideal but works.)

This doesn't work as intended with external script, however, if the tab is already focused and is the only one of its kind (its domain), as it switches back to original (non-matched) tab.

It would useful if there was no reverse switch when the matched tab is the only tab of that domain.

Thanks for making this great addon.