Webbläsartillägg för Firefox
  • Tillägg
  • Teman
    • för Firefox
    • Ordlistor & språkpaket
    • Andra webbläsarplatser
    • Tillägg för Android
Logga in
Förhandsvisning av Certificate Watch

Certificate Watch av PilzAdam

Warns when TLS certificates change over time.

5 (2 reviews)5 (2 reviews)
58 användare58 användare
Du behöver Firefox för att kunna använda den här tillägget
Hämta Firefox och få tillägget
Hämta fil

Metadata för tillägg

Skärmbilder
On first visit, a new certificate is added to the local storage automatically.The certificate from the website matches the one stored earlier.The certificate from the website is not the same as the stored version. The changes are displayed and there is an option to accept this new certificate into the store.The storage page shows information about stored certificates.
Om detta tillägg
This add-on watches over the TLS certificates that websites present to you and warns when the certificate for a domain changes. If a new domain is encountered, its certificate is added to the local storage of this add-on. Future connections to that domain will check that the certificate is still the same as in the local storage.

The add-on icon can display three possible states:
  • Stored: The certificate of the domain is the same as the one in storage.
  • New: There is no previous certificate stored for this domain; the new one is automatically added to the storage.
  • Changed: The certificate of the connection is different to the one in storage. This means, that the certificate of the website was changed. A click on the add-on icon will display more information and has the option to accept the new certificate into the local storage (overriding the old certificate).

This add-on can be a countermeasure to attacks where the attacker has a valid certificate for the attacked website. Changes to the certificate that the browser happily accepts can no longer go unnoticed. The goal of this countermeasure is simply to make the user aware that something has changed; user intervention is still required.

Be aware of the following points:
  • This add-on does not check that certificates are valid. The browser does this already. This add-on only compares certificates of connections that the browser deems safe.
  • This add-on does not block any requests where the certificate has changed. It only informs the user of this fact. If the add-on displays a changed certificate, it is up to the user to decide what to do (e.g. leave the page, accept the certificate, or something else).
  • This add-on implements Trust On First Use (TOFU): the first certificate that is encountered for a domain is automatically trusted. Only future changes will raise a warning.
  • Users of this add-on should already have basic knowledge of how certificates for TLS connections work. The warnings generated by this add-on only make sense if the user can correctly interpret them.
  • This add-on does not work in private browsing mode (see Firefox bug 1329304).
Betyg 5 av 2 recensenter
Logga in för att betygsätta detta tillägg
Det finns inga betyg än

Stjärnklassificering sparad

5
2
4
0
3
0
2
0
1
0
Läs alla 2 recensioner
Behörigheter och dataLäs mer

Nödvändiga behörigheter:

  • Åtkomst till dina data för alla webbplatser

Valfria behörigheter:

  • Åtkomst till webbläsarens flikar
Mer information
Länkar för tillägg
  • Hemsida
  • Webbplats för support
Version
1.12.0
Storlek
48,46 kB
Senast uppdaterad
för 6 år sedan (1 dec 2019)
Relaterade kategorier
  • Sekretess & säkerhet
Licens
Apache License 2.0
Versionshistorik
  • Se alla versioner
Lägg till i samling
Rapportera detta tillägg
Versionsfakta för 1.12.0
  • Added setting that defines which fields of certificates are checked
  • Added buttons to storage to prune old (unseen for a long time) or expired certificates
Fler tillägg av PilzAdam
  • Det finns inga betyg än

  • Det finns inga betyg än

  • Det finns inga betyg än

  • Det finns inga betyg än

  • Det finns inga betyg än

  • Det finns inga betyg än

Gå till Mozillas hemsida

Tillägg

  • Om
  • Firefox tilläggsblogg
  • Verkstad för tillägg
  • Utvecklarcenter
  • Utvecklarpolicyer
  • Community-blogg
  • Forum
  • Rapportera en bugg
  • Recensionsriktlinjer

Webbläsare

  • Desktop
  • Mobile
  • Enterprise

Produkter

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Sekretess
  • Kakor
  • Juridisk information

Om inget annat anges, är innehållet på denna webbplats licensierat under licensen Creative Commons Attribution Share-Alike License v3.0 eller senare version.