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See what landed recently in Firefox Nightly!

Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

130.0a1 Firefox Nightly

July 9, 2024

Version 130.0a1, first offered to Nightly channel users on July 9, 2024

Firefox Nightly gets updated every day and as a consequence, the release notes for the Nightly channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports.

Warning: Features listed here may or may not make a final release of Firefox.

In addition to these release notes, you can follow ongoing development on our @FirefoxNightly Twitter account, our Mastodon account as well as read our Nightly Blog.

You can interact with other Firefox Nightly users and give your feedback to Mozilla staff in the Nightly Matrix room on


  • Starting with Firefox 127, we're enabling a new anti-tracking feature in Nightly: Bounce Tracking Protection. This protection detects bounce trackers based on redirect behavior and periodically purges their cookies & site data to prevent tracking.

    Bug 1895222
  • Starting with Firefox 128, hovering the mouse over an unfocused tab will now display a visual preview of its contents in Nightly builds.

    Bug 1893676
  • Starting with Firefox 129, Firefox Nightly blocks third-party cookie access with Enhanced Tracking Protection's Strict mode and also in Private Browsing.

    Bug 1898255
  • Starting with Firefox 129, Firefox Nightly will automatically try to use a secure HTTPS connection whenever possible when loading a page. This behavior is known as "HTTPS-First", or "HTTPS Upgrades", and has been the default in Firefox's private browsing mode since Firefox 91. Here is a blog post from when this feature was introduced in Private Browsing.

    Bug 1719271
  • Starting with Firefox 129, location search is available in the weather widget on the new tab page in Firefox Nightly. Users can select their desired location to view the current weather conditions.

    Bug 1904876

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