Custom cursor extensions are a purely cosmetic way to personalize how your browser looks, swapping the standard arrow for a themed design. Because they touch every page you visit to apply the change, it is worth being more careful about which one you install than with most extensions.
How a custom cursor extension works
A custom cursor extension injects code into pages you visit to replace the default pointer image with a custom one. This means it typically needs permission to read and change content on all sites, which is broader access than many simpler extensions require for a purely visual feature.
What to check before installing one
Look at how recently the extension was updated, whether it explains what data it collects, and whether reviews mention it working reliably on common sites. Since the permission it needs is broad, prefer one from a developer who is transparent about what the extension does with that access.
Alternatives to a browser extension
If you want a custom cursor across your entire computer rather than just Chrome, your operating system's own pointer settings may offer more built-in options. Windows and macOS both include pointer size, color and style settings that apply everywhere, not only in the browser.