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Attack & Defense

Firefox Security Internals for Engineers, Researchers, and Bounty Hunters

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Inspecting Just-in-Time Compiled JavaScript

Tom Ritter, Jan de Mooij and Lars Hansen
September 15, 2020

The security implications of Just-in-Time (JIT) Compilers in browsers have been getting attention for the past decade and the references to more recent resources is too great to enumerate. While … Read more

About Attack & Defense

The Attack & Defense blog is targeted directly at security researchers who are interested in new developments in Mozilla’s Bug Bounty, and guides, tips, and tricks for finding bugs in Firefox.

Recent Posts

  • WebAssembly and Back Again: Fine-Grained Sandboxing in Firefox 95 December 6, 2021
  • Finding and Fixing DOM-based XSS with Static Analysis November 3, 2021
  • Implementing form filling and accessibility in the Firefox PDF viewer October 14, 2021
  • Fixing a Security Bug by Changing a Function Signature September 29, 2021
  • Eliminating Data Races in Firefox – A Technical Report June 9, 2021

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