Mozilla Releases Firefox 149 With Split View And Security Improvements

Дата публикации: 24-03-2026 10:52:22

Mozilla has launched Firefox 149, bringing new multitasking features, interface updates, and security improvements, according to the company’s announcemen
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Mozilla has launched Firefox 149, bringing new multitasking features, interface updates, and security improvements, according to the company’s announcement.

The update is gradually rolling out to users and includes split-screen browsing, modifications to site permissions handling, and performance enhancements.

Split View Side-By-Side Browsing In Firefox 149

Firefox 149 introduces a new built-in Split View feature that lets users view two tabs side by side within a single window. To activate this feature, users can right-click on a tab and choose to open it in split view.

The feature aims to support tasks such as comparing information, conducting research, or working across multiple pages without needing to switch between windows. Mozilla has been testing this functionality for several months before adding it to the stable release.

Security And Trust Panel Changes In Firefox 149

Firefox 149 introduces updates to how the browser manages permissions for malicious websites. Mozilla states that the browser will now automatically revoke notification permissions and block notifications from sites flagged as harmful through SafeBrowsing. This aims to prevent spam and phishing schemes that rely on persistent notifications.

The update also combines privacy and security details into a new “Trust Panel” accessible from the address bar, offering a single view of permissions, tracking protections, and connection security.

Firefox 149 Performance And PDF Improvements

Mozilla announces that Firefox 149 introduces updates to hardware acceleration which enhance the handling of PDF files, especially large or graphics-intensive documents.

Users can now extract images directly from PDFs via the context menu, eliminating the need for screenshots or external tools. Other performance improvements include better HTTP/3 upload behavior on unstable networks and lower power usage during full-screen video playback on Windows systems.

New Sharing And Address Autofill Features In Firefox 149

Firefox 149 introduces a customizable Share button that works with system-level sharing options on Windows and macOS. Users can add this button through the toolbar customization menu and share webpages without needing to copy URLs manually.

The update also extends the Address Autofill feature to more markets, including Australia, India, Italy, Poland, and Austria.

How To Get Firefox 149

Firefox 149 is now rolling out and can be installed automatically through the browser’s update system or downloaded manually from Mozilla’s website and app stores.

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