Dev tools · alternatives · 2026
24 alternatives to Firefox addon to quarantine a tab to use offline with private data
Introducing QuaranTab: Companion extension to quarantine tabs so you can safely use them offline with private data I find myself wanting to use online format parsers to quickly decode that production JWT or decode a base64 Authorization header but cannot trust these websites to not leak my information. I thought to myself if only I could cut-off network access to this site, use it offline, and then throw away all browsing data. So I created an extension just for that. It uses Firefox contextual identities API (Containers) to isolate browsing data and inter-tab communication. Once the site is…
QuaranTab is a Firefox extension that lets developers safely use online tools with sensitive data by isolating them offline. It quarantines websites in separate containers, blocks network access after loading, and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Firefox addon to quarantine a tab to use offline with private data launched in 2023; newer entries below may have overtaken it.
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A browser add-on to strip search results from 'blacklisted' URLs on Google - davidahmed/wiper
2020 · github.com · its alternatives →
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Sometimes you might want to share a screenshot of the website you're on, without revealing the personal data that is visible at that time. With Obfuscate, you can make text unreadable without changing the structure of the web page. Hit the extension button or press Alt+Shift+O to activate for the current page. (Note that extensions can't modify the add-on website, so trying it on there won't work.) Credit for the original idea: https://chaos.social/@maris/108379386421123630
2022 · addons.mozilla.org · its alternatives →
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Hi HN, I'm Tyler Flint, one of the creators of qtap. For a while now, my team and I at Qpoint.io have been grappling with the challenge of understanding what's actually happening inside the encrypted traffic leaving our production systems. Modern apps rely heavily on third-party APIs (think payment processors, data providers, etc.), but once TLS kicks in, figuring out exactly what data is being sent, identifying PII exposure, or debugging integration issues becomes incredibly difficult without resorting to complex and often brittle solutions. Traditional approaches like forward proxies…
2025 · github.com · its alternatives →
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Take control of all your Facebook data
2018 · addons.mozilla.org · its alternatives →
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Get a new card for every purchase with just one click
2017 · privacy.com · its alternatives →
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🌱 TDF - Tree Document Format - a universal file format for web collections - DO-SAY-GO/tdf
2020 · github.com · its alternatives →
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Simple Firefox extension for advanced tech lookup of any URL
2017 · addons.mozilla.org · its alternatives →
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Ditch your scraper. Make one API call with any tool.
Jun 2026 · tabstack.ai · its alternatives →
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Laden Sie Phagocyte für Firefox herunter. Versteckt Nachrichten und Artikel über das Coronavirus/COVID-19. Wir alle nehmen die Pandemie und ihre Folgen sehr ernst. Sollten wir uns nicht auf unsere körperliche und geistige Gesundheit konzentrieren, anstatt Todesstatistiken zu verfolgen?
2020 · addons.mozilla.org · its alternatives →
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An extension for Firefox and Chrome to add comments to any URL - comntr/webext
2019 · github.com · its alternatives →
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Freezetab is a browser extension and webapp that lets you save links, rss feeds, quotes, and articles.
2017 · freezetab.com · its alternatives →
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OP here. I built this because I recently caught myself almost pasting a block of logs containing AWS keys into Claude. The Problem: I need the reasoning capabilities of cloud models (GPT/Claude/Gemini), but I can't trust myself not to accidentally leak PII or secrets. The Solution: A Chrome extension that acts as a local middleware. It intercepts the prompt and runs a local BERT model (via a Python FastAPI backend) to scrub names, emails, and keys before the request leaves the browser. A few notes up front (to set expectations clearly): Everything runs 100% locally. Regex detection…
Dec 2025 · github.com · its alternatives →
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Firefox Relay▲252Hide your real email address to help protect your identity.
2021 · relay.firefox.com · its alternatives →
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Live extension analysis: Point us at a Chrome/Edge/Firefox extension (store URL or CRX). We spin up a safe sandbox and observe it in real time—permissions use, message passing, storage writes, network calls, remote code loading, and UI injections. Package scanning: Paste an npm/package URL or code. We do quick static + dynamic checks: install/postinstall scripts, obfuscation/eval, exfil endpoints, suspicious APIs, and typosquat/reputation signals. AI explainer: An LLM summarizes the behaviors and risk patterns in plain English (why it’s risky, what to verify,…
2025 · browsertotal.com · its alternatives →
- 17OJ
2025 · simon-frey.com · its alternatives →
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Freezetab▲109Freezetab is a tool for saving content from the web
2023 · freezetab.com · its alternatives →
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Tabserve gives you a https url for localhost using only the browser (tabserve.dev). Take a look: https://tabserve.dev
2023 · tabserve.dev · its alternatives →
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Blinqo▲121Chrome Extension to blur texts, images, forms on any website
2022 · blinqo.app · its alternatives →
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Hide spoilers, profanity, politics, distractions by keywords
Nov 2025 · filter-everything-online.com · its alternatives →
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Hi HN, I'm Tyler Flint. Eight months ago we shared qtap here (https://news.ycombinator.com/item?id=43928118). Today we're releasing DevTools - a browser-based interface that gives you the Chrome Network tab experience for server-side HTTP/S traffic. The problem: You're debugging a production issue. An external dependency is returning errors. Your logs say "request failed" but not what was actually sent. Adding debug logging means redeploying and restarting services - which takes time and often changes the conditions you're trying to debug. tcpdump shows encrypted blobs.…
Jan 2026 · qpoint.io · its alternatives →
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day1tabs▲117Your tabs close at midnight.See which ones you actually used
Mar 2026 · day1tabs.com · its alternatives →
- 24AF
Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.
2015 · addons.mozilla.org · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →