diff --git a/CERTIFICATES.d/01-dialog-A.avif b/CERTIFICATES.d/01-dialog-A.avif
index ec5eb968..2fc3c9bd 100644
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diff --git a/CERTIFICATES.d/02-dialog-B.avif b/CERTIFICATES.d/02-dialog-B.avif
index b2549c85..5e408abe 100644
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diff --git a/CERTIFICATES.d/03-window.avif b/CERTIFICATES.d/03-window.avif
index a588614e..96039a3b 100644
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diff --git a/CERTIFICATES.d/04-certificate.avif b/CERTIFICATES.d/04-certificate.avif
index de5ea9f9..e6663146 100644
Binary files a/CERTIFICATES.d/04-certificate.avif and b/CERTIFICATES.d/04-certificate.avif differ
diff --git a/CERTIFICATES.md b/CERTIFICATES.md
index 37e138ce..8ebd861e 100644
--- a/CERTIFICATES.md
+++ b/CERTIFICATES.md
@@ -32,13 +32,13 @@ is to use a desktop browser to get that information. This demonstration uses
 [Mozilla Firefox ↗️](https://www.mozilla.org/firefox/).
 
 Let's assume we want to make sure the certificate for
-[rsc.eworm.de](https://rsc.eworm.de/) is available. Open that page in the
-browser, then click the *shield* icon in addressbar, followed by
-"*Connection secure*".
+[git.eworm.de](https://git.eworm.de/) is available. Open that page in the
+browser, then click the *lock* icon in addressbar, followed by "*Connection
+secure*".
 
 ![screenshot: dialog A](CERTIFICATES.d/01-dialog-A.avif)
 
-The dialog will change, click "*More site information*".
+The dialog will change, click "*More information*".
 
 ![screenshot: dialog B](CERTIFICATES.d/02-dialog-B.avif)
 
diff --git a/contrib/logo-color.d/browser-01.avif b/contrib/logo-color.d/browser-01.avif
index f758d1e7..3dc0a1f9 100644
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diff --git a/contrib/logo-color.d/browser-02.avif b/contrib/logo-color.d/browser-02.avif
index 7679be16..1867fbe3 100644
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diff --git a/contrib/logo-color.d/browser-03.avif b/contrib/logo-color.d/browser-03.avif
index 95732ad8..dc24bbbc 100644
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diff --git a/contrib/logo-color.html b/contrib/logo-color.html
index c39a20b8..3e9c05fe 100644
--- a/contrib/logo-color.html
+++ b/contrib/logo-color.html
@@ -45,7 +45,7 @@ logo and download it.</p>
 <p><img src="logo-color.d/browser-03.avif" alt="Screenshot Browser 03"></p>
 
 <p>(This example is with
-<a href="https://www.mozilla.org/firefox/">Mozilla Firefox ↗️</a>. The workflow
+<a href="https://www.mozilla.org/de/firefox/new/">Firefox</a>. The workflow
 for other browsers may differ.)</p>
 
 <p>See how to