Rated 5 out of 5 stars

[UPDATE]
Ver. 5.8.1 fix issue. Everything works properly.

I confirm, the latest plugin update (5.8) disables the shortcut that selects all messages (Ctrl+a). The shortcut works in the message body, but you cannot select all messages in the message list of a folder.

This review is for a previous version of the add-on (5.8). 

The issue is fixed as of today (v5.8.1)

https://github.com/RealRaven2000/quickFilters/issues/160

Please use Github or the in-Add-on support tab if you find any new errors, Thanks in advance!