the main reason why I prefer Firefox to any other browser

This is very useful. Thanks for building it.

Работает прекрасно!

sangat bermanfaat untuk buka banyak akun.

Love it use it all the time.

This add-on is the main reason why I stick to Firefox. It is an absolute game changer when I need to use multiple accounts on the same website at the same time (e.g. have Gmail and YouTube in different accounts on different tabs).

Thank you.

Great add-on, love it. Although it is missing a crucial feature, the ability to add wildcard domains.

I can now open Salesforce in multiple tabs and save my sanity. Thank you!

Greatly reduces complication for me, no more keeping multiple browsers open. And it eases isolating Facebook.