10 Percent of UK Sites Incompatible with Firefox

Bimo_Dude writes "The BBC News is reporting that ten percent of UK websites alienate Firefox users. From the article: 'While most people still use Microsoft's browser, Firefox is slowly making inroads. Its share of the browser market grew to 8% in May, up from 5.59% at the beginning of the year, according to US-based analysts NetApplications. Microsoft IE's share of the market dropped to 87.23% in May, compared to 90.31% in January.'"

Comments

IE only sites

[DeadSea]

Are sites IE only because IE has features that firefox does not, or because developers are lazy and don't check in multiple browsers.

In the later case, of developing in IE, and not checking with Firefox, does anybody know what the most common things that break are?

In the IE features category, I have seen one thing that IE does really well that Firefox does not do: Image transition filters such as the fade in/out effect when you switch photos. Are there other things the you as a developer want, but are only implemented in IE?

I know on the other side, that I want rounded corners on divs and alpha transparency in pngs to be properly implemented in IE.