I've been using this add-on for about a year now, and while it's hit some typical development roadbumps, it is a fundamental part of my browsing experience. It is simply a fantastic tool for organizing the hundreds of tabs I have at any given time, and backing them up as bookmarks is a fantastic bonus feature. I think there's a reason this add-on has been designated as "recommended" by Mozilla/Firefox - I wouldn't be surprised at all if they were looking at bringing the features of this add-on into the main FF codebase. IT'S THAT GOOD, REALLY!

Thanks to this half assed extension I just lost over 100 tabs I had opened in my browser. Thank you.

Can't live without this anymore. Minimal yet very configurable.

Absolutely love this add-on! Any chance you can port it to Microsoft Edge Chromium? My company is going to blacklist Firefox in the summer :'(

Awesome! The best addon for productivity, does exactly what I wanted.

Lost some of my open tabs when played around with the plugin right after installation. Besides, that everything works just perfect for me. The integration of Multi-Account Containers is very neat. The STG plugin is just super helpful when you hassle with dozens of tabs

must install this.

Great add-on. Thanks for your time.

This Add-on has really changed my workflow. I've been able to keep the things tiddy, Work, Projects, Entertainment. It's kept distractions at bay.

Developer also listens to us!!! hence the comment below from my old review.

Former Review 2 Stars: This has the potential of being a 5 star plugin but everytime I open firefox tabs are duplicated or triplicated.

I just installed it yesterday and so far it f*ck*d everything up it could.

1. I moved some tabs into a new window to convert it into a tab-group but I didn't find any option that offered specifically that. So I choose "Create new group" in the hopes it would do that OR open a new window where I could move said tabs afterwards. It emptied out the current window without asking for confirmation or even a warning instead. :-(

2. Needed to restart my PC so I "closed all [Firefox] windows on this screen" (or however this option is called in English Windows). I expected Firefox to restore both windows after I started it again. Instead it just opened the new little group from 1. and an empty group. My (ungrouped?) window with ~200 tabs was nowhere to be found. :-(

Luckily it seems I was able to restore most tabs that had vanished in both cases.

Very powerful add-on! There are a lot of settings!
But I can't change the parent folder for backup subfolder! How can I do it? It's very uncomfortable!