# Snapshots for IPC Fuzzing

DevFeed: [Snapshots for IPC Fuzzing](<https://devfeed.tech/articles/snapshots-for-ipc-fuzzing-4130.md>)

Original publisher: [Read original article](<https://hacks.mozilla.org/2024/06/snapshots-for-ipc-fuzzing/>)

Author: Christian Holler

Published: 2024-06-27T16:18:49Z

Content type: article

Language: en

Sources: [Mozilla Hacks - the Web developer blog](<https://devfeed.tech/sources/mozilla-hacks-the-web-developer-blog.md>)

Topics: [Fuzzing/Fuzz testing](<https://devfeed.tech/topics/fuzzing.md>), [Firefox](<https://devfeed.tech/topics/firefox.md>), [out-of-process](<https://devfeed.tech/topics/out-of-process.md>), [Security](<https://devfeed.tech/topics/security.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [Testing](<https://devfeed.tech/topics/testing.md>)

Tags: [featured-article](<https://devfeed.tech/tags/featured-article.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [fuzzing](<https://devfeed.tech/tags/fuzzing.md>), [ipc](<https://devfeed.tech/tags/ipc.md>), [memory-safety](<https://devfeed.tech/tags/memory-safety.md>), [mozilla](<https://devfeed.tech/tags/mozilla.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [processes](<https://devfeed.tech/tags/processes.md>), [security](<https://devfeed.tech/tags/security.md>), [snapshots](<https://devfeed.tech/tags/snapshots.md>), [ssecurity](<https://devfeed.tech/tags/ssecurity.md>), [testing](<https://devfeed.tech/tags/testing.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>)

## AI overview

This article explains how Firefox uses process separation and IPC to isolate lower-privilege content processes from the privileged parent process. It introduces snapshot fuzzing, a method for rewinding application state to make testing critical IPC interfaces more practical by avoiding costly browser restarts and reducing iteration latency.

## Source excerpt

Process separation remains one of the most important parts of the Firefox security model and securing our IPC (Inter-Process Communication) interfaces is crucial to keep privileges in the different processes separated. We take a more detailed look at our newest tool for finding vulnerabilities in these interfaces - snapshot fuzzing. The post Snapshots for IPC Fuzzing appeared first on Mozilla Hacks - the Web developer blog.