Go to the program’s home page and click on the “Get Tidy Tabs” button. You’ll go to a feature comparison chart which shows that the “free” version limits you to only three tabs. This is by far not the only limitation either. This program is so limited it’s not of any use. Don’t waste your time installing it.
Well, it seems to work quite nicely. The only issue that I have with it, is that there are no docs available, either with program or on website.
This is relevant because there is also a paid version of this program, but there are no docs telling me what the differences between them are!! I’ve found at least one potential difference; it seems I can only group up to three tabs with the free program; no idea if the paid program is different!!