Firebug will then only assist the user with migration to Firefox’s built-in tools. When opened in a multi-process Firefox, Firebug’s tools cannot be used. This way Firebug can help users to easily migrate into built-in Firefox developer tools – in case it’s running in multi-process enabled browser. The extension is marked as multi-process (e10s) compatible so, it isn’t blacklisted and users can continue installing it. However, it also explains that :įirebug 2.0.18 fixes issue 8030. You can disable updates for Firefox Developer edition.įirebug does not work with multiprocess Firefoxįirebug 2.0.18 is compatible with Firefox 30 – 52 Here you can find all Firebug installations Now you can go at the Firebug repository and install desired version.NOTE: The Multi-process architecture improves the browser's stability, performance and security by separating tasks into processes, you disabling it at own responsibility.Īfter that you need to restart the browser. Run Firefox developer edition after installing and go to the about:config (type in url bar)įind ( set to false) Stats – shows you the difference between your page load with our without cache.I manage to get Firebug work again, so here is what I done.Įveryone knows that Firebug isn't being developed or maintained any longer because it can't work with e10s, so here is my workaround:ĭownload Firefox Developer edition so you can allow XPI installation.į64.installer.exe or.Performance – grades your website based on the rules for fast web pages.In particular I’ve seen around 25% improvements in download speed when I combined the images for the four corners of a rounded corner box, and included larger images which hold all states of an element in addition to all sides. I’ve had great results with changes made on high volume websites especially with reductions in the number of http requests for images called from the css. In my work I have been able to test a few of these parameters including the number of hits on the server, expressions in the CSS files, gzip, and minify.

Yahoo has released the much awaited (by me at least!) YSlow firebug extension which tests download speed and gives recommendations based on the famous 14 rules for fast web pages.

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