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Download Firefox Nightly for Developers 1.0.1914
This release comes in several variants (we currently have 3). Consult our handy FAQ to see which download is right for you.
Version:161.0a1
Uploaded:October 25, 2026 at 1:22AM UTC
File size:68.34 MB
Downloads:212
Version:160.0a1
Uploaded:October 23, 2026 at 2:27AM UTC
File size:47.72 MB
Downloads:709
Version:159.0a1
Uploaded:October 9, 2026 at 7:05PM UTC
File size:67.85 MB
Downloads:425
Version:158.0a1
Uploaded:September 24, 2026 at 2:11PM UTC
File size:67.07 MB
Downloads:457
Version:157.0a1
Uploaded:September 10, 2026 at 4:40AM UTC
File size:48.14 MB
Downloads:454
Version:156.0a1
Uploaded:August 28, 2026 at 7:42PM UTC
File size:47.84 MB
Downloads:401
Version:155.0a1
Uploaded:August 13, 2026 at 1:25PM UTC
File size:48.15 MB
Downloads:910
Version:154.0a1
Uploaded:July 20, 2026 at 5:02PM UTC
File size:66.41 MB
Downloads:1,566
Version:153.0a1
Uploaded:June 15, 2026 at 2:12PM UTC
File size:65.26 MB
Downloads:1,512
Version:152.0a1
Uploaded:May 18, 2026 at 2:18PM UTC
File size:62.75 MB
Downloads:1,378
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