extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Tab Stash

Firefox extension·by Josh Berry
93
/ 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

Tab Stash's safety score vs every other extension we've scanned
Globally
93.01%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
83.01%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
13
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
11
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 13 distinct issues across 6 severities
13
distinct issues
detected
Scanners reported 18 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

2 risky permissions of 11 total
2 high-risk permissions require attention
This extension requests 11 permissions in total. 2 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
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

Medium
Access session data

Can query and restore recently closed tabs and windows

Medium
Access bookmarks

Can read and modify your saved bookmarks

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Browser settings

Can read and modify browser-wide settings

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Container tabs

Can manage Firefox container tabs and their identities

Low
Hide tabs

Can hide or show browser tabs

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