The Firefox Beta for android is NOT available for LG Ally. Now that i told you that you are probably thinking "BS mozilla wouldn't do that to use there must be some way!". Your correct, but first let me tell you why it will not work. The Firefox Beta available by the big download button on there site is not available because it is for the ARMv7 processor as stated by https://wiki.mozilla.org/Mobile/Platforms/Android#System_Requirements but it is available for our ARMv6 processor by their unstable nightly builds. I did not even get the nightly build to install but you can try for yourself.
EDIT:
I did get the nightly build to work for my phone! You need to make sure you dont have the original Firefox Beta apk installed then install fennec.apk for ARMv6 processor
Thank you,
alexmason
EDIT:
I did get the nightly build to work for my phone! You need to make sure you dont have the original Firefox Beta apk installed then install fennec.apk for ARMv6 processor
Thank you,
alexmason