Firefox is giving Android users a faster way to digest long web pages, and the new shortcut is as simple as shaking a phone. With one motion, the browser can try to generate a summary of the page that is currently open.
The feature is called Shake to Summarize, and it is aimed mainly at article-style pages. Firefox says it works best on pages of 5,000 words or fewer, which keeps the focus on everyday reading rather than every type of website.
A shortcut built for mobile readers
The new gesture reflects how often people read on phones and want a quicker way to capture the main point. Instead of opening a menu first, users can trigger the summary attempt through a physical action that feels immediate.
Firefox also keeps the feature accessible through the browser menu. Users who prefer tapping can still choose the “Summarize page” option without using the shake gesture at all.
Android joins a feature that first appeared on iPhone
The shake-based summary tool was introduced on iOS before reaching Android. Its expansion to Android now extends a feature that had already been tied to Apple Intelligence on iPhone.
On Android and other non-Apple platforms, Mozilla uses its own cloud-based AI system powered by Mistral-Small. That means the summary experience is built on different technology depending on the device.
Rollout appears to be gradual
According to PiunikaWeb, the feature was already active with Firefox 152 on 16 June, but it does not seem to be available in a fully consistent way yet. Some users can see the interface, while others may still face problems when they try to use it.
One reported case showed the device detecting the shake correctly and starting the summary process, only for Firefox to return the message, “Can’t summarize right now. Try again later.”
Not everyone will want the shake gesture
Mozilla has also included a way to switch the gesture off. The option is available under the “Page summaries” tab, giving users control if the motion feels too easy to trigger by accident.
That separation is important because it lets people keep page summaries while disabling only the shake behavior. For users who prefer tighter control, the menu-based path remains available as a fallback.
A familiar AI feature with a different trigger
AI-powered summaries are not new in browser software, but Firefox is trying to make the interaction more memorable on Android. The shake motion turns a routine browser tool into something that feels more direct and easier to reach.
For mobile readers, that convenience may be the biggest change. It gives Firefox another built-in reading aid at a time when quick page scanning matters as much as full-length reading.