The release version of Firefox 66 has been launched for desktop platforms, as well as mobile for Android OS. These versions include support for the 'Scroll Anchoring' mechanism, which helps avoid situations where scrolling immediately after the page opens results in gradual shifting of the position, necessitating repeated scrolling of the content as images and external embeds load.

An eagerly awaited feature has been added to block media playback with sound. Now, sound playback will only begin with a clear user action. Visiting a page with such content will display a notification about the block, along with an option to add the site to the whitelist.
It is noted that this mode will be enabled by default this week. Initially, 25% of users will receive it, and next week the number will double. If there are no issues, it will be rolled out to all users starting in April.

Firefox 66 has introduced a 'Search Tabs' button that searches open tabs and simplifies navigation when many pages are open. This will be useful for those who work with multiple resources simultaneously. The search utilizes the existing capability of searching by page titles.
The design of the new tab page in private mode has also been updated, including the addition of a search bar.
In the Linux builds, window decoration is enabled on the client side by default. This allows interface elements to be rendered by the application rather than the window manager. This approach will enable moving tab panels to the window title and implementing hidden borders in GNOME.
Additionally, new features for web developers have been introduced, and proper display of HTML and test files in UTF-8 encoding is ensured when they are opened from the local disk via 'file:'.
Source: 3dnews.ru
