Firefox 64-bit - version 55.0b5 (Beta 5) is released
2017-06-27  link

Firefox 64-bit - version 55.0b4 (Beta 4) is released
2017-06-23  link

Firefox 64-bit - version 55.0b3 (Beta 3) is released
2017-06-20  link

Firefox 64-bit - version 55.0b2 (Beta 2) is released
2017-06-16  link

Firefox 64-bit - version 54.0 is released
2017-06-13   link

Firefox 64-bit - version 54.0 RC3 (Release Candidate 3) is released
2017-06-09  link

Firefox 64-bit - version 54.0 RC1 (Release Candidate 1) is released
2017-06-06  link

Firefox 64-bit - version 54.0b13 (Beta 13) is released
2017-06-02  link

Firefox 64-bit - version 54.0b12 (Beta 12) is released
2017-05-29  link

Firefox 64-bit - version 54.0b10 (Beta 10) is released
2017-05-23  link

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