---
title: "Trustworthy JavaScript for the Open Web"
url: https://daily.dev/posts/trustworthy-javascript-for-the-open-web-7odqn9ra4
source_url: https://hacks.mozilla.org/2026/05/trustworthy-javascript-for-the-open-web
type: article
source: "Mozilla Hacks"
published: 2026-05-05T15:55:41.002Z
updated: 2026-05-05T15:56:01.186Z
tags: ["webdev", "javascript", "encryption", "firefox", "web-security"]
reading_time: 3
upvotes: 0
comments: 0
language: en
---

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# Trustworthy JavaScript for the Open Web

**[Mozilla Hacks](https://daily.dev/sources/hacks)** · 3 min read · 0 upvotes · 0 comments

## Summary

Mozilla's Firefox Security Team introduces Web Application Integrity, Consistency and Transparency (WAICT), a new web platform proposal that cryptographically binds client-side JavaScript to a publicly auditable manifest. This addresses a fundamental trust gap in browser-based apps like encrypted messengers, where a malicious server could silently serve modified code. WAICT requires sites to opt in, after which browsers reject any unlogged code, making attacks observable and attributable. An early prototype is available in Firefox Nightly, developed in collaboration with Cloudflare, Freedom of the Press Foundation, and Meta. Specifications are being developed openly and early feedback is welcome.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://hacks.mozilla.org/2026/05/trustworthy-javascript-for-the-open-web>

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---

Tags: [#webdev](https://daily.dev/tags/webdev), [#javascript](https://daily.dev/tags/javascript), [#encryption](https://daily.dev/tags/encryption), [#firefox](https://daily.dev/tags/firefox), [#web-security](https://daily.dev/tags/web-security)

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