SECURITY REPORT · EXTENSHI SCAN
Tumblr Post
Firefox extension·by DavidC
0
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue
How it ranks
Tumblr Post's safety score vs every other extension we've scanned
Globally
72.45%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
62.45%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
13
median 38Lower is safer
Risky permissions
3
median 1Critical + high perms
Total permissions
10
median 4All declared perms
Critical findings
2
median 2Severity = Critical
Findings breakdown
Automated security signal · 13 findings across 5 severities
13
findings
detected
detected
Critical215%
High18%
Medium1077%
Low00%
Info00%
Permissions requested
3 risky permissions of 10 total
3 high-risk permissions require attention
This extension requests 10 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Observe web requests
Can monitor all network requests made by the browser
High
Block and modify web requests
Can intercept, block, or modify any network request before it completes
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Info
https://www.tumblr.com/oauth/*
No additional information available.
Info
https://api.tumblr.com/v2/*
No additional information available.
Info
https://tumblrpost/oauth-callback/
No additional information available.
Are you the author of Tumblr Post?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
Browser extensions made transparent.