Is Tumblr – Post to Tumblr safe?

Clean risk

Tumblr - Post to Tumblr sends the active page URL, title, selection, or image URL to Tumblr when you choose to share.

When you click the toolbar button, the extension reads the current tab's URL, page title, and selected text, then opens Tumblr's share tool with those values. When you use its image context menu, it sends the image URL along with the tab URL and title to the same Tumblr share endpoint.

tumblrv3.0.0Chrome Web Store
0Risk
Who publishes it

Automattic Inc. - 4 other listings from the same operator, none carrying a finding

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

Publisher
tumblr
Declared legal entity
Automattic Inc.
Registered address
60 29th St Ste 343, San Francisco, CA 94110, US
Registered contact
Automattic Inc.

Same operator - 4 listings

Published under a different store account, but sharing the registered address, contact or declared legal entity this one gave the store.

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

Publishers can request a review.

Where it sends data

Destinations our analysis observed tumblr-–-post-to-tumblr 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.

  • www.tumblr.com

    tumblr-–-post-to-tumblr sends data to www.tumblr.com. One other extension we have analysed sends data here.

Updated 30 September 2026ffnhmkgpdmkajhomnckhabkfeakhcamm