Mozilla Firefox 52.0 Stable was released on March 7, 2017 to the public through the web browser's automatic update functionality, and on Mozilla's website.
Note: Firefox 52.0 is being rolled out on March 7, 2017. The release is already on Mozilla's FTP server, but may not be yet available through automatic updating. All Firefox users and interested Internet users will have access to the release at the end of the day.
The new version of Firefox is a major release for several reasons. First, it is the first release that does away with NPAPI plugin support. Second, it marks the beginning of a new Firefox Extended Support Release (ESR) cycle.
Mozilla updates all Firefox channels on the same day when a new major stable version is released. This means that Firefox Beta is updated to Beta 53.0, Firefox Aurora to Aurora 54.0, and Firefox Nightly to Nightly 55.0. Additionally, Firefox ESR 52.0 is available (and so is Firefox ESR 45.8).
Mozilla Firefox 52.0 is available on Mozilla's public FTP server. The update will be made available today through the browser's automatic update feature, and also on the Mozilla website.
You can run manual check for updates in the following way in Firefox:
This displays the current version and channel of the browser. An update check is performed in the background, and new versions that are found during the check are either downloaded and installed automatically, or on user request.
The latest Firefox versions can be downloaded by following the links below as well:
Non-Secure warnings for HTTP login pages
Firefox warns you with a security prompt when a page with a login form uses HTTP. The browser displays a small notification underneath the login prompt when you activate it if HTTP is used on the page to submit the data.
Also, autofill disabled on these pages.
It reads: Logins entered here could be compromised. Learn more.
Strict Secure Cookies specification implemented
The Strict Secure Cookies specification has been implemented. It prevents insecure (read HTTP) sites from setting cookies with the secure flag. It prevents HTTP sites from overwriting cookies set by HTTPS sites with the secure flag.
You find the draft here.
Firefox 52.0 ESR marks the beginning of a new extended support release cycle. This release is important for a number of reasons:
Many features that landed in Firefox on the desktop landed in Firefox for Android as well. The following changes are Android specific.
Mozilla reveals security updates after the final release. We will update the listing with information once Mozilla publishes it.
Firefox 52.0.1 was released on March 17th, 2017 to the release channel. It includes a security fix that was reported to Mozilla through the Pwn2Own contest.
Firefox 52.0.2 was released on March 28, 2017. The new release fixes four issues, including a crash on startup issue on Linux, a loading tab icons on session restore issue, and another issue where new installs would not prompt users to change the default web browser on the system.
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