Petteri Pyyny
22 Mar 2026 14:40
Mozilla has announced big updates to Firefox, which improve user security and privacy.
Perhaps the most interesting of the announced updates is a free, built-in VPN. All Firefox users are promised 50 gigabytes of free VPN usage monthly going forward. According to Mozilla itself, free VPN services on the market are usually at least questionable regarding privacy protection - and Firefox's built-in VPN offers a solution precisely to this problem.
The VPN will be available already by the very end of March 2026, but only in the United States, France, Germany, and Britain. No timeline estimates were given yet as to when the VPN service will expand to other countries.
Firefox also takes a significant step forward, as it becomes the first browser to support the new Sanitizer API. This is a web security standard that helps prevent cross-site scripting (XSS) attacks, which are one of the most common and harmful web vulnerabilities. With the Sanitizer API, developers can easily clean untrusted HTML content before adding it to a webpage, which reduces vulnerabilities without requiring major changes to existing websites.
To improve usability, Firefox will receive several new features aimed at facilitating daily multitasking and work management. For example, the Split View, already familiar from Chrome, allows two webpages to be viewed side-by-side in one window, making comparison easier without the need to jump between tabs. Tab Notes, on the other hand, offer the ability to add notes to individual tabs, which helps remember unfinished tasks and continue them later. Split View and improved tabs will arrive in Firefox 148, which will be released on March 24, 2026.
In terms of appearance, Firefox will also get a facelift. Upcoming updates include refreshed themes, icons, and user interface elements, designed to modernize the browser's look and improve usability. At the same time, a new mascot, Kit, has been introduced to the browser, whose task is to bring a touch of warmth and familiarity to the browsing experience.