i cannot copy (ctrl+c) from the editor and i do not know why. please help me find out why.
i am using firefox 68 under arch linux.
the symptoms: copy using ctrl+c and mouse highlight from the editor does not work. copy (both methods) from anywhere else works. paste using ctrl+v in the editor works. paste using middle mouse click in editor does not work.
more detail: copy using ctrl+c from editor will just blank the ctrl+c buffer. that means trying to paste elsewhere will just do nothing. copy using mouse highlight from the editor will just do nothing. that means paste elsewhere will paste whatever was selected before selecting in the editor.
i have tried using another browser, chromium: copy paste works as expected.
i have tried using a blank profile in firefox: copy paste works as expected.
i have tried disabling every addon in my profile: copy does not work regardless of what addon is enabled or disabled.
addons that i use: ublock origin, cookie auto delete, disable html5 autoplay, save to the wayback machine, and uppity.
please help me debug the issue. what can i try? where can i look? what information can i collect?