All I mentioned in the notes the issue surrounding extensions that have been updated specifically for 68, leaving an older version for prior Thunderbird versions. Jonathan pointed out that the issue with the data I gathered shows extensions lacking support for older versions.  This is because the main entry for each extension only shows the latest compatibility, no reference to prior versions.  In order to get all the version compatibilities I will have to request for version data for every extension and construct the compatibilities.  This process will be a bit painful, however, I think we going to have too many of these scenarios that we do not want confusing or incorrect data. I am hoping there is perhaps an easier way to do this:  Any suggestions welcome. I will try for the next report, cannot promise. If enough people view these reports is useful (assuming good data ;-) , I will be happy to continue and improve the reports. Christopher