My problem solved but not thanks to Yslow 2.0b4 Rated 5 out of 5 stars

My problem solved thanks to Firebug 1.4b7 : i'll explain it , it may be also another's problem : the first problem was that always when I open Yslow with Firebug you have to refresh the page to make Firebug working and Yslow too , but that's not the main problem . The main problem was once i refreshed the page instead of reducing firebug , i closed it , and i have seen that thanks to firebug 1.4b7 release that clearly show an "off" button on the red cross to close : so don"t do it ! Only reduce firebug/Yslow !
Except of that , i think the yslow 2.0b3 release modified on rapidshare proposed below by poblone should have worked great for me too.

To end with glad to see yslow isn't dead and released a 2.0b4 release as others say.:D and good holydays good summer ! Bye .

This review is for a previous version of the add-on (2.0.0b4). 

YSlow for Firefox 3.5 Rated 5 out of 5 stars

To run YSlow 2.0.0b3 in Mozilla Firefox 3.5, you just need to unzip the xpi file and modify install.rdf to:

em:maxVersion="3.5.*"

you can download the Firefox 3.5 version here: http://rapidshare.com/files/252621630/yslow-2.0.0b3-fx-3.5.xpi

This review is for a previous version of the add-on (2.0.0b3). 

Rated 1 out of 5 stars

YSlow is not developed for Firefox anymore (since Firefox 3.5).

Use Google Page Speed instead, which provides the same tools as YSlow, download it here: http://code.google.com/speed/page-speed/download.html

Enjoy!

This review is for a previous version of the add-on (2.0.0b3). 

Rated 1 out of 5 stars

YSlow is not developed for Firefox anymore (since Firefox 3.5).

Use Google Page Speed instead, which provides the same tools as YSlow, download it here: http://code.google.com/speed/page-speed/download.html

Enjoy!

This review is for a previous version of the add-on (2.0.0b3). 

Rated 1 out of 5 stars

PLEASE UPDATE FOR FIREFOX 3.5 ASAP!

My appreciation of Yahoo is being fucked...

Firebug for Firefox 3.5 is out but not YSLOW? WTF?

DO NOT EVER TRUST YAHOO!

They provide you a tool, and then they won't update it so you're fucked!

This review is for a previous version of the add-on (2.0.0b3). 

Update for firefox 3.5? Rated 5 out of 5 stars

I just love this application. Is there any updated version of Firebug for Firefox 3.5?
plz help me! I can't install the current one.

This review is for a previous version of the add-on (2.0.0b3). 

Rated 4 out of 5 stars

need version for firefox 3.5

This review is for a previous version of the add-on (2.0.0b3). 

Rated 4 out of 5 stars

Please give support to FF 3.5. Why Yahoo! is waiting so long for this?????

This review is for a previous version of the add-on (2.0.0b3). 

Rated 5 out of 5 stars

Awesome!!

Keep giving us cool stuff like this!!

Don't wait so long this time!
R

This review is for a previous version of the add-on (2.0.0b3). 

Rated 5 out of 5 stars

Awesome!!

Keep giving us cool stuff like this!!

Don't wait so long this time!
R

This review is for a previous version of the add-on (2.0.0b3). 

Rated 5 out of 5 stars

Hace mas rapida la navegacion, perfecto

This review is for a previous version of the add-on (2.0.0b3). 

期待新版本 Rated 4 out of 5 stars

期待出来兼容火狐3.5的版本,每天来看一次又更新的没有!

This review is for a previous version of the add-on (2.0.0b3). 

Rated 1 out of 5 stars

Als Entwickler schien mir YSlow hilfreich zu sein. Ich halte es aber für überhaupt nicht hilfreich, dass die Funktion "automatically run YSlow ..." jede Seite (und damit jedes Script, jeden Datenbank-Eintrag, jeden Email-Versand usw.) doppelt ausführt (weil die Seite zweimal geladen wird. Bis ich darauf kam, dass YSlow dieses Problem verursacht, habe ich viele Stunden wertvoller Arbeitszeit geopfert. YSlow muss die Benutzer unbedingt über den doppelten page load informieren, sonst ist das nicht benutzerfreundlich!

This review is for a previous version of the add-on (2.0.0b3). 

Bug of "All JS Beautified" tool? Rated 3 out of 5 stars

The original code:
function test(str) {
if (str.indexOf("\\") != -1) {
alert("error")
return false;
}
}

The beautified code:
function test(str) {
if (str.indexOf("\\") != -1) {
alert("error") return false;
}
}

This review is for a previous version of the add-on (2.0.0b3). 

compatibility problem Rated 4 out of 5 stars

YSlow 2.0.0b3 conflict with Flashgot(1.1.8.7) media function. Which be used to intercepts downloadable addresses of streaming video or audio clip.

This review is for a previous version of the add-on (2.0.0b3). 

Rated 5 out of 5 stars

YSlow is a great way to see why a site's performance isn't the greatest.

This review is for a previous version of the add-on (2.0.0b3). 

Thanks Rated 4 out of 5 stars

wonderfull tools really helped me much to find many problem in my code .. Thanks alot

This review is for a previous version of the add-on (2.0.0b3). 

Causes problems with Bank Accounts Rated 1 out of 5 stars

Never really had a chance to test out the functionality since it causes problems with bank accounts.

Soon after installing it, I kept getting logged out of my bank accounts. (It happened with 3 different banks.)

Didn't realize it was YSlow until after I spent hours searching the Internet for anyone else having the same problem. Then finally decided to test in safe mode and determined it was YSlow.

Should have read the reviews as someone else had the same problem and mentions it.

So install at your own risk!

This review is for a previous version of the add-on (2.0.0b3). 

Rated 1 out of 5 stars

下载错误-228

This review is for a previous version of the add-on (2.0.0b3). 

Rated 5 out of 5 stars

No releases after 1.0.2 available for me on releases.mozilla.org. I'm China based, like zhouzb889.

Solution: alternative download at (Greek?) mirror:
http://mozilla.ntua.gr/pub/mozilla.org/addons/5369/

This review is for a previous version of the add-on (2.0.0b3).