Hi, could you check whether either of these methods is working:

• right-click > Take Screenshot
• Ctrl+Shift+S

If those do not do anything:

Could you check under the covers to see whether this feature is disabled? Here's how:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

More info on about:config: Configuration Editor for Firefox. The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future. Since we are restoring a default setting, I feel comfortable mentioning it.

(2) In the search box in the page, type or paste extensions.screenshots.disabled and pause while the list is filtered

(3) If the preference has a value of true, double-click it to restore the default value of false (we want not disabled).

Note: if the preference has a lock icon and can't be changed, we can help you investigate possible reasons for that.

Anything unusual going on there?

Hi, Your answer is spot on. Thanks. Actually, I found the same instructions on redit just before and I fixed it and wanted to come over and post the solution here and there you go your have already done it so fast. Thanks again.

Thank you for reporting back. I always wonder how that gets disabled...