How to enable YSlow in Firefox?

Asked 22/9, 2011 at 1:24 Answered 3/7, 2016 at 2:21

Solved firefox firefox-addon firebug yslow

I have installed the latest versions of YSlow and Firebug into the latest version of Firefox on Windows 7 (and restarted Firefox), but when I click on YSlow nothing happens. Also, when I click on Firebug, it opens but has no YSlow tab. I have disabled all other Firefox plugins and played with right-clicking YSlow and clicking run once and auto-run.

What am I doing wrong?

Parlous answered 22/9, 2011 at 1:24 Comment(5)

Would there be any version conflicts between firebug and yslow? – Microgroove 22/9, 2011 at 3:51

I've been having this same exact problem. When I remove/disable YSlow and then install/activate it, it works... but only until I close Firefox again. – Viscid 23/9, 2011 at 1:11

The author has asked for help with Firebug/Firefox as it no longer works twitter.com/yslow/status/596009262490464256/photo/1 – Member 10/12, 2015 at 1:0

problem with me is that I don't see the YSlow pluging icon at all from where I can activate it for usage. I'm on firefox 47.x – Amling 2/7, 2016 at 22:57

YSlow seems to have got broken inside firebug extension in latest firefox release as evident from this tweet twitter.com/yslow/status/596009262490464256 – Amling 3/7, 2016 at 2:13

As a temporary solution, try using the YSlow bookmarklet.

It's an equivalent of regular YSlow.

Microgroove answered 22/9, 2011 at 4:30 Comment(1)

most unique thing about ySlow while searching it in google chrome extension list is that it is not at all searchable in chrome web store :-). I wonder why is that. But you can get it using this link : chrome.google.com/webstore/detail/yslow/… – Amling 3/7, 2016 at 2:16

Try running Firefox in Safe Mode and disable other plugins that may conflict with YSlow. Also ensure you have really restarted Firefox.

Meisel answered 22/9, 2011 at 1:26 Comment(4)

did you mean start firefox in safe mode - it disables the plugins that way - didnt work – Parlous 22/9, 2011 at 1:32

Please clarify this answer with some more detail, otherwise someone will probably downvote you. Because you're new, I won't :-) Take into account what has been said in the comment by the poster. – Andreeandrei 22/9, 2011 at 1:36

Thanks Wayne I updated the answer. Because the answer it is no longer useful I would delete it if I could. :( – Meisel 22/9, 2011 at 1:41

Gave you an upvote for effort. There should be a delete link next to "edit" under the answer text, I didn't think any special amount of rep was needed to delete your own answers, but I may be wrong about that. – Andreeandrei 22/9, 2011 at 2:10

YSlow seems to have got broken inside firebug extension in latest firefox release as evident from this tweet from their official twitter handle. Try using GTMetrix google chrome extension. It provides one of the most exhaustive web performance statistics using PageSpeed and ySlow both. Below I've mentioned google chrome store extension link. The only thing is that you will have to use chrome instead of firefox as your web browser.

https://chrome.google.com/webstore/detail/gtmetrix-plugin/maaoaegejdlcdijmlfmpmeknliggkfdm

Amling answered 3/7, 2016 at 2:21 Comment(0)

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