பயர்பாக்ஸ் ஆதரவு மன்றம்

Hi I'm developer and i develop a site and when i QA it all are good in other browsers expect Firefox,some colors are different in Firefox,images are not displaying, in text fields there are little arrow icons, widths & heights sucks in some content why the hell is that i think Firefox is suck now i have to wast time to write other CSS file when some one comes with Firefox that need to change content.