tabgroupsmenu
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Unable to install
Can't get this to install (ff 4.0 b12) It gets stuck on....
"Add-on downloading" "A few seconds remaining - 15.6 of 15.6 kB (..."
I also tried to install it manually, but nothing seems to happen there, at all.
Hope you can help, this seems like it would be a very useful add-on.
Thanks :)