How can I use a Legacy Extension that 57.0 doesn't support and if not what older Versions of Firefox will support it? Thanks, rh1cm2
My Legacy Extension won't work in 57.0 If you can't tell me how to get it working what older Version of Firefox will support it I would hate to use another browser.
My Legacy Extension won't work in 57.0 If you can't tell me how to get it working what older Version of Firefox will support it I would hate to use another browser.
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Whoops, your post duplicated. Let's continue here: https://support.mozilla.org/questions/1210835