Firefox for iOS: ‘Shake to Summarize’ brings Apple Intelligence to web browsing
Mozilla has added a new “Shake to Summarize” feature to Firefox for iOS that generates AI-powered summaries of webpages. Users can trigger a summary by shaking their iPhone, tapping the thunderbolt (⚡) icon in the address bar, or selecting Summarize Page from the menu.
How it works
- On supported devices (iPhone 15 Pro and newer with iOS 26+), summaries are generated on-device using Apple Intelligence.
- Older iPhones or iOS versions will use Mozilla’s cloud-based AI fallback.
- The feature summarizes pages under ~5,000 words and adapts to content type (e.g., recipes become steps; news becomes key takeaways).
Privacy & Control
Mozilla emphasizes privacy: when possible, processing happens on-device. Users can disable the feature in Firefox settings to avoid accidental activation.
Rollout
The feature began rolling out in the U.S. for English-language users in early September 2025, with plans to expand to more regions, languages and eventually Android.
Quick Tips
- Activate: shake phone / tap ⚡ / Menu → Summarize Page
- Disable: Firefox Settings → Features (disable Shake to Summarize)
- Best for: long articles, guides, research pages
Sources & Further Reading
- Official Mozilla blog — On Firefox for iOS, summarize a page with a shake or a tap
- MacRumors coverage
- Pocket-lint coverage
Have you tried the feature yet? Tell us what you’d use it for in the comments below.