Is MultiTabs Markdown Editor safe?

Clean risk

MultiTabs Markdown Editor embeds OAuth client secrets and sends them during Dropbox, GitHub, and OneDrive sign-in.

When a user links Dropbox, GitHub, or OneDrive, the extension uses static OAuth client secrets included in its source. It sends those secrets with the user's OAuth code to each provider's token endpoint to complete account linking.

Park ChangUkv3.1.3.5Chrome Web Store
3Risk
Who publishes it

Park ChangUk - no other listings under this identity, 2 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Park ChangUk

Shared hosts - 2 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

dmitrybaranovskiy.github.io
Also called by 3 other listings, including ORGanizer for Salesforce
adrai.github.io
Also called by 6 other listings, including Genspark

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 3.1.3.5. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on localhost

    http://localhost/*

  • Read and change your data on www.dropbox.com

    https://www.dropbox.com/*

  • Read and change your data on github.com

    https://github.com/*

  • Read and change your data on login.microsoftonline.com

    https://login.microsoftonline.com/*

  • Read and change your data on www.googleapis.com

    https://www.googleapis.com/*

  • Read and change your data on every site you visit

    <all_urls> and 1 more

  • See the address and title of every tab you have open

    tabs

  • Store data in your browser

    storage

  • Store an unlimited amount of data in your browser

    unlimitedStorage

  • Start, monitor and manage your downloads

    downloads

  • Talk to a program installed on your computer, outside the browser's sandbox

    nativeMessaging

  • Sign you in with your Google account

    identity

downloads.shelf

Where it sends data

Destinations our analysis observed MultiTabs Markdown Editor contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • github.com

    MultiTabs Markdown Editor sends data to github.com. 10 other extensions we have analysed send data here.

  • login.microsoftonline.com

    MultiTabs Markdown Editor sends data to login.microsoftonline.com. 7 other extensions we have analysed send data here.

  • api.dropboxapi.com

    MultiTabs Markdown Editor sends data to api.dropboxapi.com. 4 other extensions we have analysed send data here.

Updated 30 September 2026phkphcgcnlnnjijmdihnijbleiicljld