diff --git a/workspace-bootstrap.md b/workspace-bootstrap.md
index a314800e91d25d46e54187c60a93358bb4c8c604..8d074af323e5822fd03775f32723e28efdfbb867 100644
--- a/workspace-bootstrap.md
+++ b/workspace-bootstrap.md
@@ -129,6 +129,7 @@ Visit `about:config` and set/add the following entries:
 ```
 browser.tabs.tabmanager.enabled = false
 services.sync.prefs.sync.browser.uiCustomization.state = true
+browser.tabs.hoverPreview.enabled = false
 ```
 
 > Ref: <https://support.mozilla.org/en-US/questions/1292568>