One web annoyance I have recently discovered is moving the current tab. So far only one website I know uses it, but that is really annoying... when you click on

One web annoyance I have recently discovered is moving the current tab. So far only one website I know uses it, but that is really annoying... when you click on specific links on that site, it suddenly moves the ative tab to the very right of all open tabs. I don't understand the reasoning there, but it made me ponder learning Firefox addon development several times already... or is something like that also easily fixed in Firefox?