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Mozilla quietly ceases Firefox 64-bit development
Mozilla engineering manager Benjamin Smedberg has asked developers to stop nightly builds for Firefox versions optimized to run on 64-bit versions of Windows.
A developer thread posted on the Google Groups mozilla.dev.planning discussion board, titled "Turning off win64 builds" by Smedberg proposed the move.
Claiming that 64-bit Firefox is a "constant source of misunderstanding and frustration," the engineer wrote that the builds often crash, many plugins are not available in 64-bit versions, and hangs are more common due to a lack of coding which causes plugins to function incorrectly. In addition, Smedberg argues that this causes users to feel "second class," and crash reports between 32-bit and 64-bit versions are difficult to distinguish between for the stability team.