Firefox 42

Added logging of weak ciphers to the web console. The Nightly logo, used to represent nightly builds of pre-alpha versions. The rule view now displays styles using their authored text, and edits in the rule view are now linked to the style editor.

Fixed the focus rings that keep growing when repeatedly tabbing through elements. Searching for something already in your bookmarks or open tabs? Say hi to the Firebug theme for Developer Tools. After it was sufficiently developed, binaries for public testing appeared in September under the name Phoenix. Improvements to web worker thread support.

The Do-Not-Track header preference has been moved to increase discoverability. Stricter validation of web fonts. Notification Center support for web notifications.

Firefox 42

Integration of generational garbage collection. Improved memory usage and display time when rendering images. MozillaZine Knowledge Base. Fixed a startup crash when using DisplayLink Windows only.

Navigation menu

Improved tools for controlling private data, including Private Browsing Mode. Promises enabled by default. Mozilla Foundation and its contributors Mozilla Corporation.

Firefox 42

Session Restore failed with a corrupted sessionstore. Improvements in memory usage. Add-ons relying on it will stop working.

An interactive onboarding tour to guide users through the new Firefox changes. Former Mozilla Organization Mozilla Foundation. It also features a large list of bug fixes. Also, it brings many bug fixes, security improvements, adobe indesign cs6 classroom in a book and developer-related changes. Code completion and inline documentation added to Scratchpad.

Various stability and performance improvements. Do not use this protocol without explicit written permission from Google. Recently opened files list in Scratchpad implemented. Phoenix was renamed due to a trademark claim from Phoenix Technologies. Opus audio format is now enabled by default.

Firefox 42

Firefox version history

Desktop Fix for a regression with the copy and paste with some old versions of some Gecko applications like Thunderbird. Its lack of such a feature had previously earned it negative comparisons with Google Chrome and Microsoft Edge. Hidden nodes displayed differently in the markup-view. Fix for a regression causing search engine settings to be lost in some context. Fixed a problem in which users who import cookies from Google Chrome can end up with broken websites.

Download Mozilla Firefox for PC Windows Beta 19 for Windows

Firefox 42

The Mozilla community as opposed to the Foundation continues to release new versions of the suite, using the product name SeaMonkey to avoid confusion with the original Mozilla Suite. Off-cycle stability release.

Simplified interface for notifications of plugin installation. Some projects abandoned by Mozilla that are still maintained by third parties are in bold. Fixed a crash on Godaddy webmail.

Updated Awesome Bar experience with larger icons. Performance, Efficiency, Reliability, and Conformance. Click-to-play blocklisting implemented to prevent vulnerable plugin versions from running without the user's permission.

We're putting the spotlight on the background. Off-cycle security and stability update.

Firefox 42

Looking for the bit version of Mozilla Firefox? Firefox now follows display scaling options to render text larger on high-res displays.

Added Negative url filtering for the network monitor. The site lists the top referrers. Older version, still supported. Support for new web technologies.