Re:I'm going to get flamed all to hell for this... (Score 1)

2) If you want to use some of the IE-only features, just install this extension, and add Sharepoint to your IE-only whitelist, and you can use the "IE-only" features from within Firefox.

The problem with IE Tab (and it's variants) is that it just embeds the IE rendering engine inside a Firefox tab. You might as well just launch IE, since, indirectly, that's what you are doing anyway. This extension really just saves you from copying and pasting the URL.

Most importantly, this doesn't actually help anybody that's not using Windows.