Mozilla Firefox 138.0 is available to download today after 9 beta releases. Here are the new features in this monthly release.

The Firefox 138.0 announcement is not ready at the moment of writing, though the download link is out. According to the Github releases page, the new Firefox release enhanced profile management support.

image from mozilla.org

As you know, Firefox web browser can have multiple profiles to keep separate browsing data (e.g., bookmarks and passwords), themes, or settings for different purposes, such as work and personal use.

In the new release, as the screenshot above shows you, by clicking on account icon -> profiles, user can now add, name profiles, and customize them with different avatars and color themes, then easily switch between them on startup.

NOTE: The new profile management is progressive roll-out feature, that may not yet be available to all users. See HERE for more about it.

For users in United States, Firefox can now trigger weather suggestions in the address bar! Just type a weather-related term or a city name, then, you’ll see the weather condition and temperature in the drop-down suggest box.

image from mozilla.org

For Windows 11 users, Firefox 138.0 now uses acrylic-style menus for popup windows, which looks native in the operating system. And, for Linux and macOS, background tabs now include new “Copy Link” context menu options.

Other changes in the release include better handling address and credit card autofill forms that update dynamically as users input information, rededicated previous color settings to Contrast Control settings, as well as following changes for developers:

• Add support for Import Attributes, allowing to specify additional metadata when importing modules.
• Applications can now set preferred degradation method.
• Enable the cache directive for the Clear-Site-Data header, allowing websites to clear the network cache.
• Add support import map integrity field, to ensure the integrity of dynamically / statically imported modules.
• Support for Error.isError, for brand checks to determine whether an object is an instance of Error.
• Support for error.captureStackTrace extension to improve compatibility with other browsers.
• New column in the Network panel to display the full path of the request URL.
• Apply a uniform user agent (UA) style to <h1> elements, regardless of whether used inside <article>, <aside>, <nav>, or <section>.

In addition, due to recent changes in Chrome on Windows, the Firefox migration wizard might no longer successfully imports passwords from Chrome. To workaround the issue, first export passwords as a CSV file from Chrome and then import into Firefox using either the migration wizard.

Get Firefox 138.0

The official announcement as well as the download link will be available in Mozilla website via the link below:

For those who can’t wait, the official packages are ready for download at this page. While, Ubuntu users may simply wait for the pre-installed Firefox to be updated automatically.