Review for Tab Counter by K. Chris C.
Rated 5 out of 5 stars
The pack-rat in me says thanks, as it lets me know when I'm getting a little to full up with tabs.
At least now I'll know in advance why Firefox and my PC have bogged down--my record is 658 open tabs (Session Manger told me after the fact.)
Thanks.
To create your own collections, you must have a Mozilla Add-ons account.