I tried to install firefox mobile edition on HTC wildfire (Indian edition) but it fails anyone faced the same problem or any workaround available to install
Credit to Matt H's comment for pointing me the right way.
If you follow through to the System Requirements page on their wiki, the HTC Wildfire is specifically called out as an unsupported device as it has an ARMv6 based processor; Firefox Mobile currently requires an ARMv7 compatible processor.
They do have an experimental build for ARMv6 based devices, which you can download here but according to the warning on the page, that is broken at the moment. If you keep an eye on there they may announce when it starts working.