Mozilla Firefox 70.0.1 release information

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Mozilla released Firefox 70.0.1 on October 31, 2019 to the web browser's stable channel. The new Firefox version addresses several issues including a major issue that caused some pages or page elements to fail to load in the browser.

Firefox 70.0.1 should be offered to users of the browser automatically thanks to the web browser's built-in automatic updating system. Firefox users may speed up the upgrade by selecting Menu > Help > About Firefox.

Firefox displays the current version of the browser in a popup on the screen and queries Mozilla servers to find out if an update is available. The update is downloaded and installed automatically on most machines if it is discovered.

The new version can also be downloaded from the official Mozilla website directly.

Firefox 70.0.1

The official Firefox 70.0.1 release notes list three issues that have been fixed.

The main issue addresses the page load issue in Firefox 70.0 that Mozilla detected after the release of the web browser to the stable channel. Some websites and web pages would fail to load under certain circumstances.

We described the issue in detail on October 29, 2019. According to Mozilla, the issue affected sites like YouTube or Facebook that use dynamic JavaScript but only for some users. It is caused by a new storage implementation in Firefox 70 called LSNG and the workaround suggested to disable the new storage implementation to resolve the issue.

The release of Firefox 70.0.1 fixes the issue; Firefox users who applied the workaround on their machines may undo it by setting the preference dom.storage.next_gen to TRUE on about:config.

The two other issues that Firefox 70.0.1 fixes are the following ones:

* Addresses an issue that prevented the title bar from being displayed in the browser's full screen view (on Mac OS). (see Bug 1588747)

* Updated the OpenH264 video plugin for Mac OS X 10.15 users. (see Bug 1587543 )
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