Add A Custom Hotkey In Gmail With GreaseMonkey/Tampermonkey
This is mostly a self documentation for my self, as I had to reset my Firefox profile, and I had to dig out this little script I wrote few years ago to “scratch my own each”. Basically in some cases I need to read text only emails with long lines, and I need to disable the line wrap. So with this user script, I register a hotkey (`w`) to toggle the class of the element displaying the email, simple as that :).