I'm sorry, but this taskbar button never worked properly. When I click on it, I get a pop up menu with only what I know is a separator (although it never actually separates anything, since there isn't anything above it, ever, no closed tabs list whatsoever), and a "Restore All Tabs" button (which seems clickable, although I never wanted to try it, scared as I was of what might happen...)

I have quite a few extensions on my browser, so I'm aware it *might* be a compatibility issue, but I really don't know how to check this myself...

EDIT: I know you don't get notifications when reviews are edited, but I immediately got in touch with you on your website, as you requested, and I'm not sure you actually got my message. If not, please let me know...

EDIT 2: I just saw YodeSky's review, just above mine, so I modified my options for this addon, and, indeed, the issue appears when more than 25 tabs are kept (or not, in this case...) Thanks, YodeSky - although the addon still doesn't really works as it should, a 24 closed tabs list is still much more useful than an empty list!