If you don’t have Google Tools installed (cyanogen mod) on your Android device, and you need a direct download link to firefox.apk here it is:

Please use download.mozilla.org to retrieve the latest Firefox release or the command line:

wget -O Firefox.apk "https://download.mozilla.org/?product=fennec-latest&os=android&lang=multi"

Mirror Download Link of (i have no idea what version was recent on 2016.08): http://dwaves.de/software/apps/Firefox.apk.gz

For other operating systems replace ‚os=android‘ with:
Android API-9 os=android-api-9
Android X86 os=android-x86

For other single locale APKs replace ‚lang=multi‘ with:
Acholi lang=ach
Afrikaans lang=af
Albanian lang=sq
Arabic lang=ar
Aragonese lang=an
Armenian lang=hy-AM
Assamese lang=as
Asturian lang=ast
Azerbaijani lang=az
Basque lang=eu
Belarusian lang=be
Bengali (Bangladesh) lang=bn-BD
Bengali (India) lang=bn-IN
Bosnian lang=bs
Breton lang=br
Bulgarian lang=bg
Catalan lang=ca
Chinese (Simplified) lang=zh-CN
Chinese (Traditional) lang=zh-TW
Croatian lang=hr
Czech lang=cs
Danish lang=da
Dutch lang=nl
English (British) lang=en-GB
English (South African) lang=en-ZA
Esperanto lang=eo
Estonian lang=et
Finnish lang=fi
French lang=fr
Frisian lang=fy-NL
Fulah lang=ff
Gaelic (Scotland) lang=gd
Galician lang=gl
German lang=de
Greek lang=el
Gujarati (India) lang=gu-IN
Hebrew lang=he
Hindi (India) lang=hi-IN
Hungarian lang=hu
Icelandic lang=is
Indonesian lang=id
Irish lang=ga-IE
Italian lang=it
Kannada lang=kn
Kazakh lang=kk
Khmer lang=km
Korean lang=ko
Latvian lang=lv
Ligurian lang=lij
Lithuanian lang=lt
Lower Sorbian lang=dsb
Macedonian lang=mk
Maithili lang=mai
Malay lang=ms
Malayalam lang=ml
Marathi lang=mr
Norwegian (Bokmål) lang=nb-NO
Norwegian (Nynorsk) lang=nn-NO
Oriya lang=or
Persian lang=fa
Polish lang=pl
Portuguese (Brazilian) lang=pt-BR
Portuguese (Portugal) lang=pt-PT
Punjabi (India) lang=pa-IN
Romanian lang=ro
Romansh lang=rm
Russian lang=ru
Serbian lang=sr
Sinhala lang=si
Slovak lang=sk
Slovenian lang=sl
Songhai lang=son
Spanish (Argentina) lang=es-AR
Spanish (Chile) lang=es-CL
Spanish (Mexico) lang=es-MX
Spanish (Spain) lang=es-ES
Swedish lang=sv-SE
Tamil lang=ta
Telugu lang=te
Thai lang=th
Turkish lang=tr
Ukrainian lang=uk
Upper Sorbian lang=hsb
Uzbek lang=uz
Vietnamese lang=vi
Welsh lang=cy
Xhosa lang=xh

Mozilla Release Engineering
Email: release-engineering@lists.mozilla.org
Web: https://groups.google.com/forum/#!forum/mozilla.release.engineering

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