Earlier quoted context omitted.
If you consider Firefox Screenshots from the perspective of a Support tool, this makes alot of sense. Customer wants to file a support ticket or bug report, needs to include a screenshot. Screenshot taken, they paste the link into the ticket, done. They never leave the browser. Outside of the browser, fire up the screenshot tool, crop whatever you want to show, save it, upload it to imgur or website of choice, attach…
cat verysecret.csv | cut -f 1 -d ' ' |fpaste -z -x -a Wait, I meant paste.
If you accidentally fpasted something sensitive, you're given a deactivation link to remove it immediately.