Add-ons voor Firefox Browser
  • Extensies
  • Thema’s
    • voor Firefox
    • Woordenboeken en taalpakketten
Aanmelden
Voorbeeld van WebHandbrake

WebHandbrake door molfab

Block distracting websites at set hours or after a daily time limit, or just slow them down with a short pause. Focus sessions, rules that are hard to undo on impulse, and no account: everything stays on your device.

Beschikbaar in Firefox voor Android™Beschikbaar in Firefox voor Android™
0 (0 beoordelingen)0 (0 beoordelingen)
Firefox downloaden en de extensie ontvangen
Bestand downloaden
Scan de QR-code om deze extensie in Firefox voor Android te openen

Metagegevens van extensie

Schermafbeeldingen
Block the sites that pull you in: at the hours you choose, after a daily limit, or while you focus.Or just slow them down: a question or a few seconds’ wait is often enough to break the habit.Always know how much time is left: daily limits, with a timer on the page and the minutes left on the toolbar icon.Firm when you need it: you decide how hard it is to change your mind, with a wait, a password, a friend’s code or a date.Private by design: no account and no tracking. Your rules and statistics stay on your device.Also on Firefox for Android: your rules, breaks and focus sessions, in a layout made for your phone.
Over deze extensie
WebHandbrake is a website blocker with a gentler side. Block the sites that pull you in at the hours you choose or after a daily time limit, or just slow them down with a question or a few seconds’ wait, so that you go in only when you mean to.

It takes a minute to set up, it is free and open source, and it needs no account: everything stays on your device.

Block distracting sites
  • Start from a ready-made list (social media, video, news, shopping, games or forums) or add your own sites.
  • Choose when: every time, at set hours such as weekdays from 9 to 5, or after some time or a number of visits each day.
  • Keep what you need: an exception allows a single page or section of a blocked site.
  • The block page can remind you, in your own words, why you set the rule.

Or just slow them down

A short pause is often enough to stop opening a site out of habit. Instead of a block, choose:
  • Ask first: say what you want to do and for how long. When the time is up, it asks again.
  • Wait: a short countdown to take a breath before the page opens.
  • Challenge: type random characters or a phrase, or solve a small sum.
  • Filter: greyscale, blur or fade make a page less appealing.
  • Redirect: open a page of your choice instead, such as your to-do list, or close the tab.

Time limits and focus sessions
  • Limit your time or your visits per hour, per day or every few days.
  • The toolbar icon and a small timer on the page show how much time is left.
  • Time runs out while you are writing? You get a moment to finish or copy your text.
  • Start a focus session now or later: it blocks the sites of your rules, a list of your own, or everything except the sites you need.
  • Need a blocked site for a minute? Take a short break, if your rule allows it.

Firm when you need it

In a weak moment, the easiest way around a blocker is to switch it off. With WebHandbrake you decide in advance how hard that is, rule by rule:
  • a simple confirmation;
  • a wait before the change applies, from a few seconds to 30 days;
  • a password that someone you trust keeps for you;
  • a code from a friend’s authenticator app;
  • no changes until a date you choose, or never.

Making a rule stricter always works straight away. Changing the system clock will not get you around it, and with a firm protection the browser’s extension and settings pages stay closed too. If you overdo it, the emergency exit always works and needs nobody else: you wait a day (by default), then type a sentence.

See where your time goes
  • Insights shows your time by day and by hour, by rule and by site, and how many times you chose not to go in.
  • Save a blocked page for later, and find it when the site is allowed again.
  • Why? tells you which rule applies to a page and when that will change.

Private by design
  • No account, no server, no ads, no analytics. WebHandbrake makes no network requests of its own.
  • Your rules and statistics stay in your browser. Export them or delete them at any time.
  • Free and open-source software, licensed under the GPL: source code on GitHub.

Also included
  • Works on Firefox for Android too, in a layout made for your phone.
  • Light and dark themes, high contrast, and keyboard and screen-reader support.
  • Import your existing block lists, including hosts files and common filter-list formats.
  • Automatic backups, keyboard shortcuts, a right-click menu and built-in help that works offline.

Why it asks to “access your data for all websites”: WebHandbrake needs this to check each page you open against your rules and to stop a blocked page before it loads, on any site you choose. Nothing it reads is ever sent anywhere. The privacy policy explains every permission.
Met 0 gewaardeerd door 0 beoordelaars
Meld u aan om deze extensie te waarderen
Er zijn nog geen waarderingen

Sterrenwaardering opgeslagen

5
0
4
0
3
0
2
0
1
0
Nog geen beoordelingen
Toestemmingen en gegevens

Vereiste machtigingen:

  • Inhoud op elke pagina blokkeren
  • Browsertabbladen benaderen
  • Browseractiviteit tijdens navigeren benaderen

Optionele machtigingen:

  • Notificaties weergeven
  • Uw gegevens voor alle websites benaderen

Gegevensverzameling:

  • De ontwikkelaar zegt dat deze extensie geen gegevensverzameling vereist.
Meer info
Meer informatie
Add-on-koppelingen
  • Startpagina
  • Ondersteuningswebsite
  • Add-on-ID kopiëren
Versie
1.1.0
Grootte
417,05 KB
Laatst bijgewerkt
4 uur geleden (25 okt. 2026)
Verwante categorieën
  • Privacy en beveiliging
Licentie
Alleen GNU General Public License v3.0
Privacybeleid
Het privacybeleid voor deze add-on lezen
Versiegeschiedenis
  • Alle versies bekijken
Toevoegen aan collectie
Deze add-on rapporteren
Naar Mozilla’s startpagina

Add-ons

  • Over
  • Firefox-add-onsblog
  • Extensieworkshop
  • Ontwikkelaarshub
  • Ontwikkelaarsbeleid
  • Gemeenschapsblog
  • Forum
  • Een bug rapporteren
  • Beoordelingsrichtlijnen

Downloaden

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Nieuwste builds

  • Nightly
  • Beta

Firefox voor bedrijven

  • Enterprise

Gemeenschap

  • Connect
  • Contribute
  • Developer

Volgen

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Juridisch

Tenzij anders vermeld, is op de inhoud van deze website de Creative Commons Attribution Share-Alike License v3.0 of een latere versie van toepassing. Android is een handelsmerk van Google LLC.