Yet one odd thing: in the PM 27.x versions I can use FF Tab Groups Helper along with a PM Tab Groups 0.3. I cannot get that to work in the Beta version. The other way around in the Beta version I have to install former FF Tab Groups 2.1.4 (The original Quicksaver) which I cannot get to work in PM 27.x.
So there is no big deal going on. My guess is that it is an under the hood thing that breaks PM Tab Groups 0.3 and allows the very last version of FF Tab Groups by the original Quicksaver to work.
Yet; many Tab Group users probably have moved to PM now. To prevent them from getting in trouble some morning when the want to start working where they left off and PM Tab Groups 0.3 stopped working and all their Tabs (In my case usually between 90 - 180) have disappeared or form a gigantic tab row, I did want to mention it.
When you do not use Tab Mix Plus session manager I have noticed that the Tab Groups session and backup manager cannot store or restore very well in PM. So if this issue is not explained or taken care off before we auto update to a stable PM 28 version many of the Tab Groups users will be very busy that morning. And not with what they thought they'd be doing. FEBE is usually my way out of this situations but reading forums I have noticed that many Tab Group users do not make FEBE backups. (It might as well be renamed to PEBE or WEBE backups by now



