The best tab counting add-on! Rated 5 out of 5 stars

I´ve tested several tab-counters out there but this one´s the best. It counts the tabs per window, not the sum of all windows. You can also customize the counter very well, which is necessary to easily catch it´s value. Works perfectly in Firefox V45.3.0 for those who prefer the ESR-version.

Thanks so much!