A follow-up question: When restarting the browser with it set to automatically re-open tabs and windows from the previous session, and with auto update collections turned on, is the association between browser windows preserved across browser sessions? Or are the re-opened browser windows/tabs disconnected from the collections that were auto-updating before the browser was re-opened? What's the expected behavior here? Thanks!

Following up on the above, I just figured out that with the auto update collections setting enabled, opening a collection in a new browser window seems to re-enable syncing. It seems to be working correctly now. Here are the steps I followed: Disable auto updating in settings Open a collection in a new browser window, delete the collection, re-create the collection and close the window – repeat with each collection Enable auto updating and auto updating new collections in settings Open each collection in a new browser window again by clicking it in the Tabox pop-up The collections are all set to auto update again, and seem to be tracking my changes. Hopefully this helps others if they run into the same problem, and Tabox HQ if they want to make improvements.

Thanks for the quick response! Regarding #2 is there a way to re-enable auto-updates for a single collection that had it disabled, or do I need to remove and re-add the collection with the auto-updating setting re-enabled in order to have it auto-update? I will also check my other extensions for conflicts. I don't have BitDefender, but I do use uBlock Origin – have you had any reports that uBlock Origin conflicts with Tabox? Thanks again!