Is Extension Manager safe to install?
Extension Manager asks for 4 browser permissions and 2 site patterns. We do not audit code and we do not judge intent; what we can show is what the listing declares and whether that has changed while we have been watching.
Chrome extension by Hongyuan Cao · Productivity · Tools
What the developer says, and 2 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
At a glance
Facts, not a score: an ad blocker needs every page and a theme needs nothing, so one number would be wrong about both. Each fact links to its detail.
- Site access
- Access to specific sites only
- Data collection
- Declares it collects none
- Upkeep
- Not updated for over a year
- Publisher
- Featured
- Audience
- 10k users · 4.3/5
What data it declares
The developer declares that it does not collect or use your data.
The developer also certifies that your data is not sold to third parties outside approved uses, not used for purposes unrelated to the extension's core function, and not used to decide creditworthiness or lending.
The listing links to a privacy policy.
This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.
What Chrome asks you to allow
When you add it, Chrome asks you to allow it to:
- Read and change your data on clients2.google.com and clients2.googleusercontent.com
- Manage your apps, extensions, and themes
- Manage your downloads
Derived from the manifest by Chrome's documented rules; the dialog's exact wording depends on your Chrome version and language. Chrome asks again if an update requests more.
What it can reach
Specific sites only: 2 match patterns.
*://clients2.google.com/service/update2/crx*only clients2.google.com*://clients2.googleusercontent.com/crx/download/*only clients2.googleusercontent.com
Reaches your browsing data or every site
-
See, enable and disable your other extensions
management
Worth knowing
-
Manage your downloads
downloads
Routine for an extension
-
Store data in your browser
storage -
Store data in your browser without the usual size limit
unlimitedStorage
How usual this is for its category
In Productivity · Tools, 20% of extensions ask for access to every site. This one: Access to specific sites only.
The typical extension there declares 3 browser permissions; this one declares 4 browser permissions.
- See, enable and disable your other extensions (management): under 1% of extensions in this category ask for it.
Counted over the live extensions of the same category after our latest full pass of the store. A share is context, not a verdict: what is normal depends on what the extension is for.
Who uses it and how it is kept up
10k users
- 2026-09-0110k
- 2026-10-3110k
- Not updated in the store for over a year: the last update was on 2025-01-26.
- No new version in the last 90 days.
What the store shows
- Featured The store's badge for extensions that follow its recommended practices for Chrome extensions.
Has it asked for more over time?
This is the question a permission list on its own cannot answer. An extension that shipped narrow and widened later is a different proposition from one that always asked for the same thing.
The permissions this extension requests have not changed since we started watching it.
Who publishes it
Hongyuan Cao, who publishes 2 listings we track. This listing has been in the store since 2022-09-19 and was last updated on 2025-01-26.
Similar extensions that ask for less
Listings close to this one in what they say they do, which declare less reach. Less reach is not a verdict on either: compare what each needs for the job.
-
One-Click Extensions Manager (New) 383 users
-
Extension Manager 1k users
-
Extension Manager ALL 2 users (last published figure)
How to check or remove it in Chrome
- Type chrome://extensions in the address bar and find the extension in the list.
- Open its details. The site access setting shows where it can run; set it to run only on click and it reaches a page only after you press its icon.
- To uninstall it, choose Remove on the same page.
Questions people ask
- What can Extension Manager access?
- Specific sites only: 2 match patterns. It declares 4 browser permissions.
- What data does Extension Manager collect?
- The developer declares that it does not collect or use your data. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.
- Has Extension Manager asked for more permissions over time?
- The permissions this extension requests have not changed since we started watching it.
- Does Extension Manager publish a privacy policy?
- Yes, the store listing links to a privacy policy.
We read the public store listing up to 2 times a day and keep what it declared. We do not install the extension, do not audit its code, do not judge its intent and publish no contact details for its developer. Last read on 2026-10-31.
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