Convenient. Works well.

Does what it says and looks good doing so. I often need to open multiple links in a row and this is a good way to make sure I didn't miss any without having to count the tabs manually.

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.

Didn't work for me, the counter itself doesn't appear at all. Tested on 2 separate FF instances with different profiles, doesn't work on both.

Good indicator that helps me save memory ;)

It does what it says it does so 5 stars!

I have a tendency to build up many tabs at once. My max has been roughly around 200 tabs open at once.

I was curious today and found this extension to check my current number.. I have 470 tabs open.......

I think it's time to clean some out.

Since I keep a number of tabs open and can't find a post v57 extension that lets me keep multiple rows of all open tabs, its easy to get lost when tabs are scrolled horizontally off screen. This is a handy little reminder there are out-of-sight tabs.

Note, waterfox (branched from FF v56) supports all legacy functions and extensions, including an extension to use multiple tab rows & also to place tabs below the bookmarks (vastly clearer UI I can't understand why FF v57 dropped). Try Waterfox for support of all modern add-ons and all your favorite legacy ones. It shares the profile with FF and gives you back your old favorite add-ons and more.

I'm all about the simple yet highly effective tools. It tells you how many tabs you have open. That's it. I'm always surprised to see that I keep so many tabs open. Now, when I see a high number, it reminds me to pare down and close a number of tabs.

Like others I tend to accumulate a lot of Tabs as I browse and I find this Add-On to be very useful in helping me know just how many are open.
It's also reassuring to know that it doesn't require any permissions.
I read earlier that the Tab Count font size could not be increased due to Firefox's developer restrictions and so I have chosen to have red text on a white background for increased readability as was suggested by the developer.
I like the fact that the counter updates in real time eg. when I issue a command to Close tabs on the right, I can keep an eye the count as it decreases (my tab count can be quite high).
In these days of increased RAM and increased Tabs, this extension genuinely fills a gap.

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.