Even those these are pretty cheap tablets I think they have a Cortex-A9 which is ARMv7. Also it is best to have one with 512MB Ram and not the model with 256mb ram. So mobile Firefox should technically work on it. Either instal by Android market if you have it or install (and update) manually. http://releases.mozilla.org/pub/mozilla.org/mobile/releases/9.0/android/en-US/fennec-9.0.en-US.android-arm.apk The list at https://wiki.mozilla.org/Mobile/Platforms/Android are of ones that is known to work or not work.