AdGuard’s browser extension isn't just for blocking ads. It has a hidden userscript engine that supports most Tampermonkey APIs. The killer feature? It runs before the page loads. Tampermonkey waits for DOM readiness; AdGuard injects at the network level.
The 4.0 rewrite broke thousands of scripts by removing GM_* APIs. The community panicked. Many left. But if you only need simple DOM manipulation and hate feature creep, Greasemonkey is still a masterpiece of focus. tampermonkey alternative
So I went looking for alternatives. Not because Tampermonkey is bad—it's brilliant. But because no brilliant tool should become the only tool you trust. AdGuard’s browser extension isn't just for blocking ads
Here’s an interesting, story-driven write-up on Tampermonkey alternatives, framed as a user’s quest for the perfect userscript manager. It started with a single pop-up. Not an ad—worse. A nag screen inside my developer tools: "Tampermonkey has been updated. Please review the new permissions." It runs before the page loads