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Replying to Salma but to anyone else who had the same "issue": quitting and restarting the browser is necessary for this to start working :)
Would have been great, if it worked. :( I have all the settings enabled, but it doesn't copy the emails when I click. I have the notification enabled, that also does not pop up.
Simplicity and efficiency at their finest. Mailto links are really annoying and should have been deprecated by now.