Is SyncMix - YouTube MUSIC Crossfade safe to install?

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 a number of websites
• Read your browsing history
• Communicate with cooperating native applications

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: 5 match patterns.

• https://music.youtube.com/* only music.youtube.com
• http://127.0.0.1:8000/* only 127.0.0.1
• https://europe-west1-syncmix-party.cloudfunctions.net/* only europe-west1-syncmix-party.cloudfunctions.net
• https://firestore.googleapis.com/* only firestore.googleapis.com
• https://lrclib.net/* only lrclib.net

Reaches your browsing data or every site

• Talk to an application installed on your computer nativeMessaging
• See the address and title of every tab you have open tabs

Routine for an extension

• Open a panel beside the page sidePanel
• Store data in your browser storage

Pages it runs its code on

It runs its own code on specific pages only: 1 site pattern.

• https://music.youtube.com/* only music.youtube.com

A content script is code the extension injects into pages matching these patterns. On those pages it can read and change what you see, whether or not a host permission is listed above.

How usual this is for its category

In Lifestyle · Entertainment, 12% of extensions ask for access to every site. This one: Access to specific sites only.

The typical extension there declares 2 browser permissions; this one declares 4 browser permissions.

• Talk to an application installed on your computer (nativeMessaging): under 1% of extensions in this category ask for it.
• See the address and title of every tab you have open (tabs): 17% 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

329 users

• Last updated in the store 8 days ago, on 2026-10-24.
• We have seen 6 new versions in the last 90 days.

What the store shows

• Established publisher The store's badge for publishers with a good record and no history of violations.
• Trader The publisher has declared itself a trader under EU rules.

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.

1. 2026-10-19Asked for more permissions (9, was 8) (changed: site access)
2. 2026-10-16Asked for more permissions (8, was 7) (changed: site access)
3. 2026-10-14Asked for fewer permissions (7, was 9) (changed: browser permissions)

Versions we have seen

1. 2026-10-25Version 2.44
2. 2026-10-23Version 2.42
3. 2026-10-19Version 2.41 · Asked for more permissions (9, was 8) (changed: site access)
4. 2026-10-19Version 2.40 · Asked for more permissions (9, was 8) (changed: site access)
5. 2026-10-16Version 2.20 · Asked for more permissions (8, was 7) (changed: site access)
6. 2026-10-14Version 2.18 · Asked for fewer permissions (7, was 9) (changed: browser permissions)

Who publishes it

Taka Idea. This listing has been in the store since 2026-06-30 and was last updated on 2026-10-24.

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.

1. YouDJ Desktop from Chrome No site access · 1 permission 481 users ★ 3.1
2. YouTube Music Volume Control Access to specific sites only · 1 site pattern 2k users ★ 4.6
3. Crossfade Mixer Access to specific sites only · 1 permission, 2 site patterns 45 users ★ 4.0

How to check or remove it in Chrome

1. Type chrome://extensions in the address bar and find the extension in the list.
2. 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.
3. To uninstall it, choose Remove on the same page.

Questions people ask

What can SyncMix - YouTube MUSIC Crossfade access?

Specific sites only: 5 match patterns. It declares 4 browser permissions.

What data does SyncMix - YouTube MUSIC Crossfade 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 SyncMix - YouTube MUSIC Crossfade asked for more permissions over time?

Its permissions changed 3 times while we watched, most recently on 2026-10-19.

Does SyncMix - YouTube MUSIC Crossfade publish a privacy policy?

Yes, the store listing links to a privacy policy.