Mozilla Firefox Nightly Free Download

Mozilla Firefox NightlyOverview

Mozilla Firefox Nightly - Test brand new features of Firefox browser daily (or... nightly). Enjoy at your own risk.

Every day, Mozilla developers write code that is merged into a common code repository (mozilla-central) and every day that code is compiled so as to create a pre-release version of Firefox based on this code for testing purposes, this is what we call a Nightly build.

NEW

NEW:

- Starting with Firefox 128, hovering the mouse over an unfocused tab will now display a visual preview of its contents in Nightly builds.
- Starting with Firefox 129, Firefox Nightly blocks third-party cookie access with Enhanced Tracking Protection's Strict mode and also in Private Browsing.
- 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.
- 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.
- Starting with Firefox 130, we’re launching a voting feature for the stories and articles on the New Tab page. You can vote up or down by hovering over the card, helping to improve future recommendations.

CHANGED:

- Deprecated HLS playlist support in Firefox for Android. Extended testing showed no adverse impact as newer playback technologies have been widely adopted by websites.