Is Outbox for Tumblr safe?

Clean risk

Outbox for Tumblr saves outgoing Tumblr ask contents in local extension storage.

Outbox for Tumblr watches Tumblr ask and post request bodies as you send asks or private ask answers. It stores the recipient, ask text or content blocks, layout data, and any send-error marker in local extension storage, keeping up to 512 saved items for its outbox page.

April Sylphv2.2.0Chrome Web Store
0Risk
Who publishes it

April Sylph - 1 other listing 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.

Same store account

1 other listing published from this account, 50k+ users between them, none of them carrying a finding.

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 2.2.0. 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 tumblr.com

    *://*.tumblr.com/*

  • Store data in your browser

    storage

  • Watch every request your browser makes

    webRequest

Updated 30 September 2026oeamngjfgbhipkibmgglfdaohochpoej