Is CheckiO safe?
Checked version: 1.2.4 · Scan date (UTC): 2026-08-01
Likely abandonedsafety score reduced by 30 points
- No update in over 7 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
Findings breakdown
detected
Permissions requested
Manage other extensions
Can enable, disable, or uninstall other browser extensions
Communicate with desktop apps
Can exchange messages with applications installed on your computer
View open tabs
Can see URLs and titles of all open tabs
https://checkio.org/*
No additional information available.
https://*.checkio.org/*
No additional information available.
https://empireofcode.com/*
No additional information available.
https://*.empireofcode.com/*
No additional information available.
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What this assessment covers
- Store listing
- Firefox
- Checked version
- 1.2.4
- Current listed version
- 1.2.4
- Scan date (UTC)
- Assessment status
- Completed
Recorded findings: 2 critical and 1 high severity. Read the finding details before interpreting the score; automated flags are not proof of malicious behaviour.
Automated analysis looks for suspicious code, permissions and other risk signals. It does not observe every runtime behaviour or independently audit the publisher’s servers. A low-risk result is not a guarantee of safety. How our checks work.