Make sure addons go across versions
New version deleted almost all my addons. Why does this happen? It doesn't with Chrome
Chosen solution
Firefox 57.0 and later Releases including the current 58.0.1 requires the Extension to be webextension. You appear to be Testing a Beta (Dev ed.) build of 59.0b# where some extensions may not be compatible with.
Read this answer in context 👍 1All Replies (2)
Those messages mean there is an update for those add-ons.
Chosen Solution
Firefox 57.0 and later Releases including the current 58.0.1 requires the Extension to be webextension. You appear to be Testing a Beta (Dev ed.) build of 59.0b# where some extensions may not be compatible with.