How to block Firefox
on iPhone

You can block Firefox on iPhone without deleting it, using Screen Time App Limits for a daily allowance, Downtime for a scheduled block, or a dedicated blocker for default-off access. The real question is whether Firefox is the only browser you'd fall back on.

A Firefox-only block has an obvious escape route: any other browser on the phone. iPhone ships with Safari by default, and Chrome or Edge can be added freely from the App Store. If the habit is opening a browser to fall into a reading, search, or scroll rabbit hole, closing off Firefox specifically doesn't touch that habit if another browser is one tap away.

1. Open Settings, then tap Screen Time. If needed, turn on App & Website Activity. Tap App Limits, then Add Limit.

2. Select Firefox, and any other browser you actually use. Choose Firefox, tap Next, set the daily allowance, then tap Done. Add Safari, Chrome, or Edge to the same limit if a rabbit hole in one is just as likely in another.

3. Know what happens after the limit hits. iPhone shows a Screen Time limit screen once the allowance is used, but an App Limit can be ignored by default, and it leaves any browser you didn't include fully open.

Check which browsers are installed. Look through the App Library or Settings for Safari, Chrome, Edge, Brave, or anything else. Each needs its own entry in your limit or block.

Notice the switch, not just the Firefox usage. If closing Firefox at a limit is reliably followed by opening a different browser, that's the actual pattern worth restricting, not Firefox specifically.

Do not confuse an override with a failed limit. If you see an Ignore Limit option, the limit triggered as designed. See how to stop ignoring Screen Time limits if tapping through has become automatic.

Downtime blocks most apps during a scheduled period. Go to Settings > Screen Time > Downtime, choose Scheduled, and set the days and hours. Include every browser you have, not only Firefox, for the scheduled window to hold.

Turn on Block at Downtime for a real scheduled block. Apple lets Downtime show a reminder by default; with Block at Downtime enabled, restricted apps cannot open during that period. Check Always Allowed too, since Safari can sit there by default on some setups.

A dedicated blocker only works if it covers the browsers you'd actually switch to. With Fella, select Firefox alongside Safari, Chrome, or Edge, whichever are installed, so there's no unrestricted browser left as an easy fallback. For a broader look at options, see our iPhone app-blocking options.

Fella keeps every selected app unavailable by default. Apps you didn't select stay fully accessible, so this is about choosing a complete list, not restricting the whole phone.

Use the emergency unlock only for a genuine need. Each blocking session includes one 5-minute emergency unlock across your blocked apps. When the five minutes end, everything on the list locks again automatically.

People whose Firefox use falls into open-ended browsing. If a quick search in Firefox turns into an extended session of tabs and links, this is the pattern worth interrupting, wherever it happens.

People who've noticed themselves switching browsers to get around a limit. If Firefox gets restricted and Safari quietly becomes the new habit, a blocker that covers both closes that gap.

People who've already tried app limits. If "Ignore Limit" or browser-hopping became a habit of its own, a harder default across every browser is the next step.