3 ms·
I found a way to do this in XP. (Vista or 7 should be similar) 1. Open "Documents and Settings\<user name>\Application Data\Mozilla\Firefox\Profiles\<profile>\
by fishtastic 15y ago
I found a way to do this in XP. (Vista or 7 should be similar)
1. Open "Documents and Settings\<user name>\Application Data\Mozilla\Firefox\Profiles\<profile>\extensions
2. Find the folder for the unsupported extension, there should be a file called install.rdf inside.
3. Open the file and change the <em:maxVersion> to 5.*.
Might have missed something, but that did the trick for me.