Firefox 134 is now available in the stable channel, along with two ESR updates, 115.19.0 and 128.6.0. The key changes include a revamped look of the new tab page, an improved address bar, and performance and search improvements.
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What’s new in Firefox 134
New tab page
Some users have been offered an updated design concept for the page that opens when creating a new tab.
The new design features a search bar, a weather forecast widget, and a block of recommendations for visiting sites. The sites that the user most frequently visits and pins for quick access are displayed in a single row rather than in a grid. The number of columns with content dynamically adjusts to the width of the browser window, which optimizes the use of available screen space.
Currently, the new design concept is only available to users from the United States of America and Canada. To activate this feature in other countries, you need to make changes to the browser settings (about:config), by modifying the newtab value that contains the data "US, CA". Add your country code, say for Italia you must change it to "US, CA, IT".
Address bar improvements
In the updated browser interface, when the focus moves to an empty address bar, the drop-down menu offers not only a list of recommended and recently visited web pages, but also a history of recent search queries. This allows the user to quickly make adjustments to the query or repeat it in another search engine.
In addition, the drop-down menu now includes the buttons for performing additional actions, such as printing the current page or switching to another tab.
Hardware support
- For the Linux platform: support for additional touchpad gestures has been implemented, such as a two-finger tap to pause idle scrolling.
- For the Windows platform: support for hardware decoding of HEVC (H.265) video has been added.
Search improvements
Residents of Germany, Austria, Belgium, Italy, the Netherlands, Spain, Sweden and Switzerland have gained access to the Ecosia meta-search engine, which is actively involved in protecting the environment, directing a significant portion of its profits to planting trees.
Environmental friendliness
The company uses renewable energy sources to power its servers. Search results are generated by accessing the Bing and Google search engines.
Performance improvements
Improved the accuracy of determining the user activation state. Activation signals the beginning of the user's interaction with the page (mouse movement, button clicks, switching to the menu). After activation, some Web APIs become available, for example, up until now pop-up dialogs were blocked. The changes in the new release are aimed at reducing the number of false positives of pop-up dialog blocking and improving usability.
Security improvements
In addition to new features, Firefox 134 fixes 20 vulnerabilities. Eleven vulnerabilities are marked as dangerous, of which 10 are caused by memory issues such as buffer overflows and access to already released memory areas. These issues could potentially lead to the execution of malicious code when opening specially designed pages. Another dangerous vulnerability (CVE-2025-0244) is related to the ability to spoof the address bar in the Android version using an incorrect protocol scheme.
Download Firefox
Alternatively, you can download the installers here: https://releases.mozilla.org/pub/firefox/releases/134.0/. Choose the browser compatible with your OS, language, and platform from there. The files are sorted into subdirectories by platform and UI language, and they include complete (offline) installer packages.
Linux users should use the OS' package manager to get the latest version available for the distro. E.g. in Ubuntu/Mint with the official mozillateam PPA connected, you can run the apt update && apt install firefox command in a root terminal.
The official release notes are here: https://www.mozilla.org/en-US/firefox/134.0/releasenotes/.
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