diff --git a/Tests/LibWeb/TestConfig.ini b/Tests/LibWeb/TestConfig.ini
index 457df8c7373..f23ae8cb688 100644
--- a/Tests/LibWeb/TestConfig.ini
+++ b/Tests/LibWeb/TestConfig.ini
@@ -171,6 +171,16 @@ Text/input/wpt-import/user-timing/measure_associated_with_navigation_timing.html
 ; https://github.com/LadybirdBrowser/ladybird/issues/3461
 Text/input/wpt-import/html/browsers/browsing-the-web/unloading-documents/beforeunload-canceling.html
 
+; These tests are very slow, especially in CI. Disabled to help with timeouts.
+; https://github.com/LadybirdBrowser/ladybird/issues/3679
+Text/input/wpt-import/html/rendering/pixel-length-attributes.html
+Text/input/wpt-import/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-auto.html
+Text/input/wpt-import/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-fixed.html
+Text/input/wpt-import/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-percentage.html
+Text/input/wpt-import/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-auto.html
+Text/input/wpt-import/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-fixed.html
+Text/input/wpt-import/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-percentage.html
+
 ; These are just disabled to keep macOS CI runs from timing out.
 ; Note that we skip all "write" and "write_single" test variants *except*
 ; the "uri" (default) variants we've already skipped earlier in this file.