diff --git a/Lombiq.Tests.UI/Docs/FakeVideoCaptureSource.md b/Lombiq.Tests.UI/Docs/FakeVideoCaptureSource.md
index c4e899765..15907be86 100644
--- a/Lombiq.Tests.UI/Docs/FakeVideoCaptureSource.md
+++ b/Lombiq.Tests.UI/Docs/FakeVideoCaptureSource.md
@@ -8,22 +8,24 @@ You can use `y4m` or `mjpeg` video files as a fake video capture source in the C
 
 If you have a video file in e.g. `mp4` format, use your preferred video tool to convert it to one of the formats mentioned above. If you don't have a preferred tool, simply use `ffmpeg`.
 
-_Hint: The `mjpeg` format will usually result in a smaller file size._
+> ℹ️ The `mjpeg` format will usually result in a smaller file size.
 
 ```bash
 # Convert mp4 to y4m.
 ffmpeg -y -i test.mp4 -pix_fmt yuv420p test.y4m
 
 # Convert with resize to 480p.
-ffmpeg -y -i test.mp4 -filter:v scale=480:-1 -pix_fmt yuv420p test.y4m
+ffmpeg -y -i test.mp4 -vf "scale=480:720" -pix_fmt yuv420p test.y4m
 
 # Convert mp4 to mjpeg.
 ffmpeg -y -i test.mp4 test.mjpeg
 
 # Convert with resize to 480p.
-ffmpeg -y -i test.mp4 -filter:v scale=480:-1 test.mjpeg
+ffmpeg -y -i test.mp4 -vf "scale=480:720" test.mjpeg
 ```
 
+> ⚠ Using the `-filter:v scale=480:-1` command might "ruin" the video, resulting in a black screen in the browser without warnings.
+
 ## Sample
 
 You can find a usage example under [Lombiq Vue.js module for Orchard Core - UI Test Extensions](https://github.com/Lombiq/Orchard-Vue.js/tree/dev/Lombiq.VueJs.Tests.UI).
diff --git a/Lombiq.Tests.UI/Services/WebDriverFactory.cs b/Lombiq.Tests.UI/Services/WebDriverFactory.cs
index 35570b69e..0b30f475a 100644
--- a/Lombiq.Tests.UI/Services/WebDriverFactory.cs
+++ b/Lombiq.Tests.UI/Services/WebDriverFactory.cs
@@ -154,6 +154,9 @@ private static TDriverOptions SetCommonChromiumOptions<TDriverOptions>(
         {
             var fakeCameraSourceFilePath = configuration.FakeVideoSource.SaveVideoToTempFolder();
 
+            // In some cases the video would not start automatically. To avoid this scenario we are adding the
+            // "disable-gesture-requirement-for-media-playback" flag.
+            options.AddArgument("disable-gesture-requirement-for-media-playback");
             options.AddArgument("use-fake-device-for-media-stream");
             options.AddArgument("use-fake-ui-for-media-stream");
             options.AddArgument($"use-file-for-fake-video-capture={fakeCameraSourceFilePath}");