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Mozilla Firefox (eo) 147.0.3 download

Mozilla Firefox is free and open source software, built by a community of thousands from all over the world.

This is an older version. The current version is 157.0.1. Mozilla Firefox (eo) 157.0.1 · Released:
147.0.3 is part of the 147 line, which reached its end of life on February 24, 2026. It no longer receives security fixes. endoflife.date

Installer files 147.0.3

ArchitectureTypeScopeFile sizeDownloadSHA256
64-bit EXE (NSIS) All users — download-installer.cdn.mozilla.net VirusTotal
ARM64 EXE (NSIS) All users — download-installer.cdn.mozilla.net VirusTotal
32-bit EXE (NSIS) All users — download-installer.cdn.mozilla.net VirusTotal

Link and SHA256 come from the Windows Package Manager community manifest. Compare the hash of the downloaded file before running it.

Release notes

New
- Interoperability improvements for the CSS anchor positioning and Navigation web APIs.
Fixed
- Fixed a regression where position: sticky elements on some webpages could appear stuck or fail to update while mousewheel-scrolling after certain :hover interactions. (Bug 2010481)
- Fixed an issue where the Firefox Developer Tools could fail to re-open after using the Inspector’s node picker and reloading a page containing cross-origin iframes. (Bug 2003810)
- Fixed an issue where the DNS over HTTPS provider settings section could appear as a blank box, preventing users from seeing the current setting or changing it. (Bug 2010501)
- Fixed an issue on Windows systems with a large number of fonts installed where parts of the Firefox UI (tabs, menus, and Settings) could display garbled characters or symbols instead of readable text. (Bug 2012950)
- Reference link to 147.0.2 release notes.
Unresolved
- On Linux (Wayland) systems, certain popups and context menus will sometimes open in the wrong place, such as the top-left corner of the window. Firefox 147.0.3 has a partial mitigation for this problem and remaining instances will be addressed in a future release. (Bug 2003045)

https://www.mozilla.org/firefox/147.0.3/releasenotes/

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