Ctrl + Shift + C Should Copy
Intercepts Ctrl+Shift+C, blocks opening developer tools, and copies the selection to the clipboard.
What is Ctrl + Shift + C Should Copy?
Ctrl + Shift + C Should Copy is a Firefox add-on that intercepts the Ctrl+Shift+C command, preventing the opening of developer tools, and instead copies the selected content to the clipboard.
Injects a script into pages to intercept Ctrl+Shift+C as a copy command, not allowing it to open Developer Tools.
Concerned about permissions? There is no convenient way at the moment to have Firefox run this extension on every site without "all sites" permission. However, you can look at what the script does, it's minimal. https://github.com/jscher2000/Ctrl-Shift-C-Should-Copy/blob/main/content.js
You also can use an online extension reader to extract the files for review. For example: https://robwu.nl/crxviewer/?crx=https%3A%2F%2Faddons.mozilla.org%2Fen-US%2Ffirefox%2Faddon%2Fctrl-shift-c-should-copy%2F
If you use Greasemonkey, Tampermonkey, Violentmonkey, or FireMonkey, you also could consider using the above file in a user script.
Ctrl + Shift + C Should Copy may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.
Ctrl + Shift + C Should Copy has earned a fairly good reputation and likely can be trusted.