Cert Canary

Warns of pending certificate expiration

Cert Canary: Warns of Certificate Expiration

Cert Canary is a browser extension that alerts users when a TLS certificate is near expiration. It displays a color-coded warning box for pages with expiring certificates and provides a list of the domains requested with their time to expiration.

Add-on stats

Manifest V2
Daily users: 4
1
Version: 0.1 (Last updated: 2021-09-22)
Version code: 5299086
Creation date: 2021-09-22
Firefox on Android: No
Permissions:
  • webNavigation
  • webRequest
  • webRequestBlocking
  • <all_urls>
Size: 26.21K
URLs: Website
Full description: See detailed description

Ranking

Add-on safety

Risk impact

Cert Canary requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
  • Low ******* ****** ** *** ********* ********
Risk likelihood

Cert Canary has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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