SECURITY REPORT · EXTENSHI SCAN
一字幕 - 视频字幕插件 | 电影字幕 | 免费
Firefox extension·by 字幕君
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
一字幕 - 视频字幕插件 | 电影字幕 | 免费's safety score vs every other extension we've scanned
Globally
1%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Language Support
1%of language support extensions carry more risk
Riskier ←→ Safer
Ranked against 4,113 language support extensions
Findings
352
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
33
median 3Declared in manifest
Active users
600
median 3vs category median
Findings breakdown
Automated security signal · 352 distinct issues across 6 severities
352
distinct issues
detected
detected
Scanners reported 654 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical10%
High134%
Needs Review00%
Medium30286%
Low267%
Info103%
Permissions requested
3 risky permissions of 33 total
1 critical permission require attention
This extension requests 33 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
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
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
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
Block requests with host access
Can block or redirect network requests and requires host permissions
Low
Schedule tasks
Can schedule periodic background tasks
Low
Use side panel
Can display content in the browser side panel
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
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Scan performed by extenshi.io · Jul 25, 2026
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