the best tab suspender that I will never know if I didn't try to be open to add-ons with low users, underrated AF but I don't blame people not much people willing to link there google account for a simple tab suspender, Not me tho :p
so cause I like this add-on so much I will give a piece of advice no one will hear anyway, let the extension run without sign in to anything unless the user want to sync his settings.

If you work with many tabs open then you gotta give this app a try, you will wonder how you did without it and will love it as much as I do! Good work guys!