Releases/Firefox 66

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Information and links to do with Firefox 66. This may be useful for Mozilla contributors actively working on the release. It is also a record for future reference.

About the 66 release

Release checklists

Dates of 66 releases

66.0a1 Nightly

66 Beta

  • 66.0b1 dev ed release on aurora channel 22 Jan 2019
  • 66.0b3 Beta release on beta channel: 29 Jan 2019
  • Release notes

66.0 Release

  • 19 March 2019

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