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由 war59312 发表于 April 5, 2011 · 永久链接

It works fine in 4.0. The xpi file simply needs to be updated to show that.

You can force it to enable using http://www.mrtech.com/extensions/#toolkit .

Options > Miscellaneous > XPI Install Options > Uncheck "Enable Addons Compatibility Checking"

Then restart Firefox.