Why removing unused extensions is worth doing
Every installed extension runs in the background to some degree, so clearing out ones no longer in use can noticeably speed up browsing and reduces the surface area for a poorly maintained or malicious extension to cause problems.
Removing vs. disabling
The toggle switch on chrome://extensions turns an extension off without deleting it, keeping its data and settings intact for later β useful for an extension only needed occasionally, whereas "Remove" deletes it and its stored data completely.
Frequently Asked Questions
Can I remove an extension that was installed by my organization or school?
Extensions pushed by an IT-managed Chrome profile, common on work or school devices, are often locked and cannot be removed by the end user. The Remove option will be missing or grayed out in that case.
Will removing an extension delete data associated with it, like saved settings?
Generally yes β removing an extension clears its locally stored data and settings, so if it might be reinstalled later and the configuration should be kept, disabling it instead preserves that data.