hello, i don't think that intel powered android phones are supported by firefox as of yet (however there is some work done to get firefox onto a broad range of devices).

The current mobile Firefox 19.0 is for devices with ARMv7 and more recently ARMv6 if they also meet minimum requirements for RAM and resolution for version.

Mozilla has very experimental builds of Firefox for Android-x86 (it will show up as Nighty in the app list)

http://starkravingfinkle.org/blog/2012/11/firefox-for-android-running-on-android-x86/

http://ftp.mozilla.org/pub/mozilla.org/mobile/nightly/latest-mozilla-central-android-x86/

Note that the Nightly channel builds get checkins pretty much every day so sometimes it can vary in stability each day.

edit: changed Fennec to Nightly for app list part.

It shows up as Nightly in the application list. Otherwise Jame's answer is correct. We don't have support for Intel x86 phones on our release or beta products in the Play Store.

Note: don't install the package from the starkravingfinkle.org site. It is quite old. Use the second ftp.mozilla.org site to get Firefox for your phone.

James' answer was the most useful one, tnx to everyone for the replies.