Firefox 40 will be released to the stable channel on August 11, 2015 if things go as planned. There is always the chance of delays caused by last minute bug.
The release has just been posted to the official archive website -- Mozilla moved all data from the ftp server it maintained previously to it -- and it is likely that third-party download portals will offer it before the official release date.
All Firefox channels are updated tomorrow. Firefox Stable will be moved for version 40, Firefox Beta to version 41, Firefox Developer to version 42, Firefox Nightly to version 43 and Firefox ESR to version 38.2.
The information you find below reveal all there is to know about the Firefox 40 stable channel update.
The 64-bit version of Firefox for Windows is still not available for stable channel releases.
All Firefox versions check for updates automatically by default. The new version will be picked up by the browser tomorrow.
Users who don't want to wait for this to happen -- the check does not run in real-time but in intervals only -- can run a manual update check instead.
To do that tap on the Alt-key and select Help > About Firefox from the menu bar that opens.
Direct downloads are made available by Mozilla once Firefox has been released officially. You can download the version you need using the links below.
Unsigned add-on installation warning
Firefox users who try to install unsigned extensions in the browser receive a prompt in Firefox 40. The prompt warns them but does not block the installation of the extension.
Just hit the install button to install the extension anyway in Firefox. Note that this happens only on third-party sites offering Firefox add-ons as all add-ons hosted on Mozilla AMO are signed.
Mozilla plans to block the installation of unsigned add-ons starting with version 41 oi stable and beta channels of Firefox.
Suggested Tiles show sites of interest
Mozilla continues its work on Firefox's New Tab Page. The organization introduced sponsored tiles a while ago to the new tab page and complements this with suggested tiles in Firefox 40.
The main difference between sponsored and suggested tiles is that sponsored tiles are advertisement while suggested tiles are not.
Suggested tiles are based on the user's browsing history and Mozilla hopes to display related sites of interest this way.
You can read up on the technology used by the feature here.
Both suggested and sponsored tiles may only be displayed if the New Tab Page cannot be populated with native website and service links.
New Add-on Manager Style
Mozilla has updated the design of the add-on manager which you can access directly by loading about:addons in the browser.
The look matches the style of the in-content preferences (about:preferences). You can find out more about this change on Bugzilla@Mozilla.
Asynchronous plugin initialization
Firefox's new asynchronous plugin initialization improves plugin handling in the browser significantly.
Not only will it improve plugin startup time in Firefox but also reduce the number of crashes and hangs caused by plugins.
We have reviewed this in detail here and suggest you check it out if you are interested in the technical side of the implementation.
Add context to Firefox Hello conversations
You may now add context to Hello links that you create. Firefox Hello is a built-in real-time communication feature using WebRTC.
When you click on the "add new context" link you may add a title, link and comments.
Please note that this list includes only the highlights. Consult the link to the developer changes in Firefox 40 at the end of the article for a full list of changes.
The Android version of Firefox shares most improvements with the desktop version. The following changes are Android-specific.
Long press on back/forward buttons brings up history
If you long press on the back or forward button in the Firefox menu, the history of accessed sites is displayed on that page.
This improves navigating back and forth between pages opened in the same tab as you can access any site or service you have accessed previously directly.
Other Android changes
This are released after the official reveal by Mozilla. We will add the information once they become available.
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