Work perfectly. Does exactly what it says in the description

super helpful for linux users

Thanks a lot for making this! It helps a ton on Linux.

Very useful addon, I don't understand why Firefox don't use it by default.

As others say, it just works. This firefox extension perfectly solved my annoyance of needing to use Alt+Number to change tabs after changing to linux from windows. thank you devs.

it just works

works as intended, without issue