#browser internals
Posts tagged browser internals — 3 articles.
How It Works
How It Works · 20 min
Chrome Deletes the Last Manifest V2 Extensions on August 31
The 'your extensions die on August 31' headlines are a year late. Manifest V2 stopped running in July 2025. August 31 is only a Web Store cleanup.
How It Works
How It Works · 22 min
Why Chrome Uses So Much RAM: Inside Its Memory Management
Chrome isn't leaking. Site Isolation, V8's heap and hidden caches explain the number, and why your task manager can't name the tab responsible.
How It Works
How It Works · 15 min
How Chrome Extensions Actually Run Your Code
How Chrome extensions actually execute code: content scripts, isolated versus main worlds, the MV3 service-worker lifecycle, and message passing.
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