Firefox 64-bit - version 53.0.3 is released
2017-05-19   link

Firefox 64-bit - version 54.0b9 (Beta 9) is released
2017-05-19  link

Firefox 64-bit - version 54.0b8 (Beta 8) is released
2017-05-16  link

Firefox 64-bit - version 54.0b7 (Beta 7) is released
2017-05-12  link

Firefox 64-bit - version 54.0b6 (Beta 6) is released
2017-05-09  link

Firefox 64-bit - version 53.0.2 is released
2017-05-05   link

Firefox 64-bit - version 54.0b5 (Beta 5) is released
2017-05-05  link

Firefox 64-bit - version 54.0b4 (Beta 4) is released
2017-05-02  link

Firefox 64-bit - version 54.0b3 (Beta 3) is released
2017-04-28  link

Firefox 64-bit - version 54.0b2 (Beta 2) is released
2017-04-25  link

SeaMonkey 64-bit - version 2.50 (Unofficial Nightly) is released
2017-04-24  link

Firefox 64-bit - version 54.0b1 (Beta 1) is released
2017-04-20  link

Firefox 64-bit - version 53.0 is released
2017-04-18   link

Alternatives

  1. Cyberfox 64-bit
  2. Waterfox
  3. Pale Moon 64-bit
  4. Brave browser
  5. pcxFirefox 64-bit
  6. fbuild.com (for Intel 64 + AVX2, for Intel 64, for AMD64)
  7. Light, a light firefox