Kosher Browser by kosher browser

A free kosher filter for the whole family. Adult sites are blocked from the moment you install, and you decide what else stays out: sites, ads, YouTube channels, pictures, words and music. It all happens on your own device: no account, no server, no tracking.

PROTECTION LEVELS, ONE TAP

• Basic (new installs start here): safe search, no ads (on YouTube too), explicit words blurred, gambling sites blocked.
• Kosher: Basic, plus pictures of women covered (AI on your device) and YouTube in Restricted Mode with no Shorts.
• Mehadrin: Kosher, plus YouTube plays only channels you approve, social networks blocked and explicit words hidden.

Levels are for the parent's own profile and keep your lists of sites, channels and words. Children get filtering by age.

A PROFILE FOR EACH CHILD

• Filtering by age: 4–8 (only 23 chosen sites open: Torah and Jewish children's sites first, then learning sites), 9–12 or 13–17.
• A daily browsing limit and downtime hours. When time is up, a parent can add 15, 30 or 60 minutes with the password, and the child goes back to the site they were on.
• "Who's browsing?" when the browser opens, an optional 4-digit code for each child, and an illustrated avatar. The parent profile always needs the password.

BLOCKING

• Adult content: a built-in list of 30,000 sites with no switch to turn it off. It keeps working while blocking is paused, the allow list cannot open it, and the site names are never shown anywhere.
• Categories: social networks, video, news, shopping and gambling. 110 hand-picked Israeli and international sites, one switch per category.
• Your own blocklist (subdomains included), or allow-list mode: everything is blocked except the sites you approve.
• SafeSearch enforced on Google (every country domain), Bing and DuckDuckGo.
• Schedules: time windows on the days you choose, such as work hours, evenings or Shabbat.

YOUTUBE

• Four modes: no limit, blocked entirely, no Shorts, or approved channels only (add channels such as @nickjr and nothing else plays).
• A video from a channel you haven't approved is blocked, and a parent can approve the channel right there with the password. YouTube players embedded in other sites are checked too.
• Ad removal from the player itself works in any mode. YouTube's own Restricted Mode can be turned on too.

PICTURES (on in Kosher and Mehadrin, or turn it on yourself)

• Smart mode: every picture starts covered, and AI running on your device uncovers only the pictures it is sure don't show the people you chose to cover: women, men or both. Video frames are checked as they play.
• Without AI: pictures stay covered, and a click uncovers only the picture you clicked.
• Cover styles: blur, mosaic, black, white or a colour, with a strength slider. No picture ever leaves your device.

WORDS

• Add names or topics, and the articles, posts and paragraphs that mention them disappear while the rest of the site stays. Hebrew prefixes and plurals are caught.
• Built-in lists in Hebrew and English: explicit words (on from install) and a wider list for children (on in every new child profile), chosen so they don't hide Torah learning. While either is on, a page whose title is a sexual topic closes completely.

MUSIC (optional)

• For Sefirat HaOmer and the Three Weeks: videos and audio are muted while music plays, and lectures, speech and prayer keep playing. Shofar, chant and Torah reading are never treated as music; singing without instruments is muted only if you choose.

ADS AND TRACKING

• Ads only (the default): 105 advertising networks blocked, with the smallest change to sites.
• Ads and tracking: 45 more analytics hosts. Sites you want to support can be exceptions.

PASSWORD AND SELF-CONTROL

• A password guards the settings and the off switch. Only a SHA-256 hash is stored, never the password. After five wrong tries it locks, for longer each time.
• Strict mode locks the extension's off switches, even for someone who knows the password. The browser's own extensions page can still turn it off or remove it.
• Focus timer: 15 to 120 minutes or a length you choose. The countdown survives a browser restart.
• A warning when private windows are left unfiltered.

PRIVACY

No account, no server, no analytics: your settings stay in your browser. Blocking works on web addresses and reads no page. The YouTube features and the picture, word and music filters look inside pages on your device only, and nothing they read is sent anywhere. The one request the extension makes on its own: in Smart mode it loads again, without cookies, pictures the page already loaded, to check them on your device, and it remembers on the device what it found in each picture, never the picture or its address. The AI models are open source and ship inside the extension.

Hebrew and English interface, following your browser's language. Works on Firefox 140 and later and on Firefox for Android 142 and later. Also available for Chrome.

Also for Android phones: Kosher Browser on Google Play

Help and guides: kosher-browser.pages.dev/en/help