SECURITY REPORT · EXTENSHI SCAN

Office365 Cookie Cleaner

Firefox extension·by jlevon
95
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.

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

Office365 Cookie Cleaner's safety score vs every other extension we've scanned
Globally
95%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
85%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
3
median 38Lower is safer
Risky permissions
3
median 1Critical + high perms
Total permissions
26
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 3 distinct issues across 6 severities
3
distinct issues
detected
Scanners reported 6 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 risky permissions of 26 total
1 critical permission require attention
This extension requests 26 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

Can read and modify content on every website you visit

High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
View open tabs

Can see URLs and titles of all open tabs

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Store local data

Can save data locally in the browser for persistence

Info
*://*.office365.com/*

No additional information available.

Info
*://*.officeapps.live.com/*

No additional information available.

Info
*://*.outlook.com/*

No additional information available.

Info
*://*.outlook.live.com/*

No additional information available.

Info
*://*.live.com/*

No additional information available.

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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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