No, this isn’t an “Internet Explorer is crap” article.

This was very frustrating. I was rewriting the CSS for the web site I’ll be opening up later today, doing a first test of the changes in Firefox, and none of the changes were showing up on the page.

Using Firebug and XRAY, the changes weren’t even appearing in the CSS as they reported it.

I started out tweaking the CSS and became more and more confused as the changes I was doing failed to make any impact on the appearance of the page. Once I found that they weren’t being recognized I thought that Firefox must be caching the CSS file and not reloading it… I found an extension to give me a handy “clear cache” button… that didn’t do it… I went into the preferences and cleared the cache by hand… no good.

I tried the page under Safari and it rendered the way I expected it to. I tweaked the CSS and saw the effects of the tweak. That was good news… but why wasn’t Firefox working? I’d never run into this kind of problem with it before.
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