new mail notification on Linux
When TB receives new mail there is a standard notification pop-up for a short time. However this is not persistent (and not intended to be) so doesn't help if you are looking elsewhere at the time.
In previous versions of TB the minimised window icon changed when you had new mail. This was removed and replaced by plugins (eg. I was using FireTray for a while but it is no longer supported). I cannot find any current plugin to do this. I think at least TB should set the window urgent hint so the window manager can indicate there is something new in the standard way. This is really core functionality and unless Mozilla are going to maintain a plugin themselves, I think it should be part of the main program?
Additional System Details
- User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0