Hi sorry for my poor English, is somebody can help me?
I created 3 add-ons, but I can not test the same as firefox says on the examples given in the tutorials:
this addon couldn’t be installed Because It Appears to be corrupt
my add-on
https://addons.mozilla.org/en-US/firefox/addon/lecjo/
https://addons.mozilla.org/en-US/firefox/addon/lecjoa/
and the third to generate video in javascript and css, I expect to have completed the first two
cordially