Quick answer: Install Chrome extensions from the Chrome Web Store, then manage them from More → Extensions → Manage extensions. Chrome lets you turn extensions on or off, remove them, review their permissions and — for supported extensions — control whether they can read and change data on specific sites or all sites.
Install an extension
On desktop Chrome, open the Chrome Web Store, select the extension and choose Add to Chrome. Review the permission dialog before confirming. Google says extensions cannot be added while you are in Incognito or Guest mode, and a work or school administrator may block installation.
Pin an extension without granting more permissions
The Extensions menu near the address bar lets you pin frequently used extensions so their icons remain visible. Pinning is only a toolbar choice; it does not by itself grant additional site access.
Review site access
Some extensions can be limited to run On click, On specific sites or On all sites, depending on the extension’s permissions. If a tool only needs to work on one service, limiting site access can reduce unnecessary exposure.
Turn an extension off without deleting it
Go to Manage extensions and switch the extension off. This is useful when diagnosing a browser problem: disable one add-on, reproduce the issue, then re-enable it if nothing changes. Removing many extensions at once makes it harder to identify which one was responsible.
Remove an extension completely
Open Manage extensions, select Remove and confirm. Google notes that if an extension changed certain Chrome settings, removing it can restore the affected settings. After removal, review the homepage, search engine and New Tab behavior if those had changed unexpectedly.
What to do if Chrome disables an extension
Chrome may disable extensions that are not from the Web Store or are considered unsafe. Do not bypass the warning by installing an unknown copy. Check whether the legitimate developer has a current store listing or choose a maintained alternative.
Permissions worth reviewing carefully
Google’s permission guide highlights access such as “read and change all your data on websites you visit,” browsing history, tabs, clipboard data or location. These permissions can be legitimate for some functions, but the extension’s purpose should justify them.
Troubleshoot a broken extension
- Update Chrome.
- Reload the affected page after installing an extension.
- Check whether the extension is enabled.
- Check its site access.
- Disable conflicting extensions that modify the same page.
- Use Repair if Chrome shows a corruption option.
FAQ
Can Chrome extensions work on every website?
No. Chrome blocks extension scripting on some privileged pages, and site access can be restricted.
Should I leave every extension enabled?
No. Remove tools you no longer use to reduce clutter, attack surface and possible performance overhead.
Can extensions run in Incognito?
Only if you explicitly allow the supported extension in Incognito from its Details page.
Official reference
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