What do I need to do in order to enable FireFox Screenshots in my version of Firefox, so that I do not have to use the Shift+F2 command line to generate a full page screenshot?

The dropdown on my version of Firefox shows:


According to a comment on another post, I should be able to enable the Firefox Screenshots button, but when I go to about:config and type in about:config extensions.screenshots I see that is should be active:

about:config e3xtensions.screenshots

I am able to use Shift+F2 and type

screenshot ~/foo.png --fullpage

as a workaround, but that is cumbersome for a operation I plan to use frequently, that is, once it is working.

Update: The Customize... area does not show anything obvious that I can use to drag and drop:


  1. Open a webpage and click the three dots icon ("Page actions") in the address bar.
  2. You should see a "Take a Screenshot" icon. Right click on it.
  3. Select "Add to Address Bar".
  • The "Take a Screenshot" option is not there. I guess it's not supported in Linux? – Mauricio Scheffer Feb 10 '20 at 18:24
  • If you're asking whether the feature does not work on any Linux at all, then the simple answer is "no, that's not correct". – pomsky Feb 10 '20 at 20:29
  • thanks for your reply, you're right of course, I just checked on another Linux machine and the option is there. Must be something about this particular build somehow! – Mauricio Scheffer Feb 12 '20 at 14:57

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