Works but: Only shows 3 characters. The 4th 1,000+ is cut off on the right side. (though 1000 is too many for Firefox anyway). Customization settings would be good improvement.

Good extension, but font size is not customizable and could be bigger.

Works fine. Though with a large number of open tabs/windows the figures shown are truncated. Would be nice if that could be fixed.
Or maybe make the pitch of the figures customizable to fit everything in.
Hovering over the button shows the full numbers in the pop-up, so this is the work-around for the full info.

Very solid addon. The author has a well written description. It works well and can be customized.

Font size was a little small compared to what I'm currently using ('Tab Count Icon by lllusion3418'). It is very customizable (but 'Tab Counter Plus by Oriol Brufau' seemed to be slightly more so).

Personally, I will probably keep using TCI because the font size is very important to me (viewing from about 10ft away on a 50" TV set to 1920x1080 so every little bit helps) but I think many people would be happy with this as is.

Great extension, it helps me a lot to see my work activity. It shows only 3 digits for tab counter which is not enough for me. If more than 2500 tabs opened it slows down browser when I'm shifting between tabs and it's slightly annoying.

It is ok, colors can be customized, what it shows, number of tabs, number of windows, etc, also can be customized. But nowhere I can choose the place, it always sits in the tab bar, I can drag it in the addon bar with the customzation firefox menu, but impossible to put it next to the URL bar.

Thanks for this practical add-on. I just miss the option to change text color. I like light colors but in that case number of open tabs is invisible (because it is always white). And also like someone before mentions it would be useful that you could change size of font (number) for us who don't have perfect vision any more :)

It can use a better look but it does what it needs to do.

Installation does not ask for any permissions, great!
The displayed number looks like sore thumb, too much attention grabbing, I had to change the background color in settings of the extension.

I opened 41 tabs in one window and one tab in another window. Total 42 ... look at how they are counted in the attached picture:
https://ibb.co/iXiH4a

Decent replacement for https://addons.mozilla.org/en-US/firefox/addon/tab-counter/ that works with multiprocess, but the icon and box around the number is distracting. Please add an option to have it display as a number in the same font as Firefox and nothing more.