How to install theme oustide firefox theme store?
I upload my customised themes on firefox add on store. I want to try my theme before I upload it into store to view how its looking, to find out any errors, etc. I tried using the below method ( Image 1 ) but this error occurs ( image 2 ).
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You can load add-ons temporarily using the about:debugging page. See: https://firefox-source-docs.mozilla.org/devtools-user/about_colon_debugging/index.html#this-firefox