Articles tagged "content-scripts"

3 articles found

Two overlapping hairline page frames, slightly offset, with a small orange watercolor panel staying pinned in the same corner while the page underneath changes.

chrome-extensions content-scripts webnavigation

Content scripts in single-page apps: how to survive a route change in MV3

Your content script runs once on YouTube and never again. Fix Chrome extension SPA navigation with webNavigation — or without a new permission. Full MV3 code.

Maxim Kosterin

August 18, 2026

15 min read

Two squares sharing one footprint on paper, one an empty charcoal outline and one a soft orange watercolor wash — the same page seen from two isolated worlds.

chrome-extensions scripting-api content-scripts

Runtime script injection in Chrome extensions: ISOLATED vs MAIN world

chrome.scripting.executeScript end to end: inject on click with activeTab, pass args safely, and choose ISOLATED or MAIN world. Full MV3 code, ~25 min.

Maxim Kosterin

August 15, 2026

22 min read

extension-security malware content-scripts

Zero-permission malware droppers: how to check if any of your extensions can be weaponized

A zero-permission extension can still drop malware: LayerX Labs showed any extension can silently backdoor your downloads. How to check and stay safe.

Maxim Kosterin

March 9, 2026

9 min read