Uploaded February 2026 | Updated September 2026, 2 weeks ago
Learn the fundamentals of Chrome Extension IDs, from their generation to their critical role in security and resource management. Oliver clarifies the difference between IDs for unpacked extensions (based on file path hash) and published extensions (derived from public keys). Understand how to work with deterministic IDs for development, the importance of ID uniqueness, and the security implications of using an ID as an extension's origin.
Chapters:
0:00 - Introduction
0:36 - Understanding extension ID structure
1:00 - Using the ID as an origin
1:24 - Unpacked extension ID generation
1:49 - Public key cryptography explanation
2:52 - The public key manifest field
3:07 - Demo: Replicating an extension ID
3:47 - Security in development vs. production
4:23 - Generating consistent IDs with OpenSSL
5:07 - Conclusion
Watch more Developer Mode → https://goo.gle/dev-mode
Subscribe to Chrome for Developers → https://goo.gle/ChromeDevs
#ChromeForDevelopers #Chrome
Speaker: Oliver Dunk
Products Mentioned: Chrome
Learn the fundamentals of Chrome Extension IDs, from their generation to their critical role in security and resource management. Oliver clarifies the difference between IDs for unpacked extensions (based on file path hash) and published extensions (derived from public keys). Understand how to work with deterministic IDs for development, the importance of ID uniqueness, and the security implications of using an ID as an extension's origin.
Chapters:
0:00 - Introduction
0:36 - Understanding extension ID structure
1:00 - Using the ID as an origin
1:24 - Unpacked extension ID generation
1:49 - Public key cryptography explanation
2:52 - The public key manifest field
3:07 - Demo: Replicating an extension ID
3:47 - Security in development vs. production
4:23 - Generating consistent IDs with OpenSSL
5:07 - Conclusion
Watch more Developer Mode → https://goo.gle/dev-mode
Subscribe to Chrome for Developers → https://goo.gle/ChromeDevs
#ChromeForDevelopers #Chrome
Speaker: Oliver Dunk
Products Mentioned: Chrome
