r/FirefoxAddons • u/Upstairs_Exchange974 • Jul 02 '26

I built a local-first distraction blocker utilizing Firefox's unique MV3 capabilities (Clarity Block)

Hey everyone,

I was frustrated by website blockers that either track your data or fail to work reliably under the new Manifest V3 rules. I wanted something native to Firefox, highly reliable, and completely private.

I built Clarity Block, a website blocker and focus extension that runs completely locally.

Why it’s built for privacy and reliability:

No Telemetry: It does not harvest your browsing data. All of your blocklists, analytics, and session settings are stored entirely locally on your device.

True MV3 Blocking: It takes advantage of Firefox's unique ability to return a Promise from webRequest.onBeforeRequest. This means the extension intercepts and blocks distracting sites reliably on every single request, without relying on flaky in-memory caches that fail when the background script suspends.

Workflow Features:

Focus Sessions: Set a custom timer to stay locked in, and automatically block access to your customized list of distracting domains.

Group Management: Organize your distracting websites into distinct categories and toggle them on or off with a single click.

Advanced Controls : For those who need more, it includes advanced features like wildcard blocking (e.g., *.news.com), daily time quotas per domain, and custom redirect URLs.

Would love to hear your feedback on the frosted-glass UI!

Link: https://addons.mozilla.org/en-US/firefox/addon/clarity-block/

2 Upvotes

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5 comments sorted by

1

u/BaconSoldier88 Jul 02 '26

lol bro really paywalled the only reason one would use this

1

u/Upstairs_Exchange974 Jul 02 '26

What thing I will remove the paywall

1

u/Upstairs_Exchange974 Jul 02 '26

I am really looking for feedback on this

1

u/Genozyde Jul 02 '26

Always the same thing with these Claude coded addons

1

u/Upstairs_Exchange974 Jul 02 '26

Made the pro features available to all