Firefox, Thunderbird Go Fortnightly

Mozilla's Firefox and Thunderbird have adopted a fortnightly release schedule, with Firefox 155 and Thunderbird 155 being the first releases under this new cadence. The new releases feature various new features, including AI-powered tools and improvements to existing functionality.

Firefox 155 features a new AI-powered tool called Smart Window, as well as an LLM-assisted tab-group naming feature. The browser also supports Happy Eyeballs v3 for faster page loading and adds support for Marathi and Urdu languages. Marathi is spoken by nearly 100 million people, mostly in the Indian state of Maharashtra, while Urdu is the national language of Pakistan.

The new release schedule was announced by Mozilla in July, with Thunderbird subsequently confirming it would follow the same fortnightly release schedule as Firefox. This accelerated schedule is set to bring new features and improvements to users more frequently.

## What's New The new features in Firefox 155 are largely focused on AI, with the Smart Window tool and LLM-assisted tab-group naming feature being the main highlights. The browser also now displays the number of blocked trackers in the address bar, although this feature is being rolled out progressively.

## Why it Matters The shift to a fortnightly release schedule marks a significant change for Mozilla's Firefox and Thunderbird. With new features and improvements being released more frequently, users can expect to see more regular updates to the browsers and email client. This could help Mozilla stay competitive in the browser market, where other browsers such as Google Chrome and Microsoft Edge are also constantly evolving.

The addition of new languages, including Marathi and Urdu, also highlights Mozilla's commitment to making its browsers and email client more accessible to users around the world. With nearly 100 million people speaking Marathi and Urdu being the national language of Pakistan, these additions could help increase adoption of Firefox and Thunderbird in these regions.

## What Happens Next With the new fortnightly release schedule in place, users can expect to see more regular updates to Firefox and Thunderbird. Mozilla has already announced plans to continue releasing new features and improvements, with the next releases set to follow in the coming weeks. As the browsers and email client continue to evolve, users can expect to see more AI-powered tools and other features being added to enhance their browsing and email experience.