How can you disable the new JSON Viewer/Reader in Firefox Developer Edition?
Go to about:config In search, paste ‘devtools.jsonview.enabled’ Select the pref, right-click and select ‘toggle’
firefox-developer-tools
How to open the correct devtools console to see output from an extension script?
Your code is correct as written, it works and outputs to console. If you are not seeing it, then you are, probably, looking at the wrong console. 1. Firefox Mozilla describes what extension output can be seen in which console in their Debugging article. Browser Console The Browser Console no longer shows output from WebExtensions … Read more