I am having the exact same problem listed here: https://support.mozilla.org/en-US/questions/1224880 But none of the solutions there work. Of course since I did not alrea… (read more)
I am having the exact same problem listed here:
But none of the solutions there work.
Of course since I did not already have an account here, I was forced to create this duplicate question.
I was using Firefox fine all day, then suddenly Copy/Paste stopped working. Inside Firefox, the option for Copy still appears and can be selected, but when you Paste within Firefox or anywhere else on the system, things copied in Firefox are not available. Copying outside of Firefox works just fine. Using Firefox 62.0 (64-bit) on macOS 10.12.6
Update: And as soon as I posted this, now Copy/Paste is working, but only within Firefox; Firefox is now acting as if it has its own independent clipboard, accessible only within Firefox. This is happening everywhere within Firefox, regardless of website.