My Google Chrome developer tools are disabled. I\'m not sure how it happened. I was using them in the morning then went to use them in the afternoon and the F12 button wou
Open regedit (Registry Editor) and find the DeveloperToolsAvailability key by first going to this path:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\
... then click Chrome and select DeveloperToolsAvailability from the list on the right. Double click it and change it from 2 to either 1 or 0. Click OK and close regedit, then close Chrome and re-open it. Chrome dev tools should now be enabled.
However, depending on your system, you may instead have the DeveloperToolsDisabled key in that same path. If so, delete that.