Firefox 64-bit 139.0.4

Mozilla’s popular open source browser enhanced for performance, privacy, and functionality.

Source: mozilla.org

Release	Date	Hash	Show all revisions
139.0.4	Jun 11, 2025	4487e42f5627e35e
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Developer: mozilla.org/en-US/firefox

Support: support.mozilla.org/en-US/products/firefox
Current
139.0.4 updated 9 days ago
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File Extensions

.avif .htm .html .oga .ogg .ogv .pdf .shtml .svg .webm .webp .xht .xhtml