Enable pasting of passwords in Firefox

In Firefox: Modify Your Configuration Settings

Firefox users can change the browser’s behavior in the configuration settings.

Head to about:config in Firefox and click OK for the warning.

Search for dom.event.clipboardevents.enabled in the search box. It’ll be the only option once you type in “dom.event.cl”:

Double-click on the setting to change the value from “true” to “false”.

Now websites can’t mess with your clipboard or block your ability to copy and paste.

It’s terrible that we have to jump through hoops to easily use our long passwords on many sites, but at least it only takes a couple of minutes to fix this frustration.