This is an older version. The current version is 151.0. Firefox Developer Edition (eo) 151.0 · Released:
Installer files 141.0
| Architecture | Type | Scope | File size | Download | SHA256 |
|---|---|---|---|---|---|
| 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
- On Linux Firefox uses less memory and no longer requires a forced restart after an update has been applied by a package manager.
- Firefox builds in Valencian now come with a built-in Catalan (Valencian variant) dictionary for the Firefox spellchecker.
Changed
- Firefox on Windows 11 now uses system provided font icons for the caption buttons, more in line with Windows 11.
Developer
- Firefox will now also clear the back-forward-cache when receiving the Clear-Site-Data: "cache" response header.
Web Platform
- Implemented the closedby attribute and it's related closedBy property on dialogs indicating the types of user actions that can be used to close the associated <dialog> element.
- Support for Cookies Having Independent Partitioned State (CHIPS) is now re-enabled, allowing developers to opt a cookie into storage partitioning per top-level site.
- The HTMLElement.showPopover() and HTMLElement.togglePopover() methods now take an options.source argument referencing the popover invoker, and togglePopover() also takes a force resp. options.force argument to force the popover open or closed.
