Hackbar-v2.9.xpi -2021- -

Posted on: April 16, 2026 Category: Tooling & Nostalgia

If you’ve been in the web application security space for more than a few years, the name Hackbar needs no introduction. Hackbar-v2.9.xpi -2021-

For the uninitiated, an .xpi file is the classic installation package for Mozilla Firefox extensions. And Hackbar? It was the browser toolbar that turned your average Firefox window into a lightweight, manual SQL injection and XSS lab. Posted on: April 16, 2026 Category: Tooling &