Add-on: https://addons.mozilla.org/en-US/firefox/addon/yslow/ Complaint: https://twitter.com/#!/grigs/status/116218169240190976 "i click on the yslow button and nothing happens. it doesn’t show up as a panel in firebug. the icon does show up though."
Legacy extensions are no longer valid in Firefox 57, closing.
Status: NEW → RESOLVED
Last Resolved: a year ago
Resolution: --- → INVALID
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