[Basilisk] make sure anchor.top is not smaller than zero

This commit is contained in:
2021-11-18 09:05:19 +08:00
parent a5ec8fdfaa
commit 5ee33e15f5
+1 -1
View File
@@ -124,7 +124,7 @@ var FormValidationHandler =
let tabBrowser = aWindow.gBrowser;
this._anchor = tabBrowser.popupAnchor;
this._anchor.left = aPanelData.contentRect.left;
this._anchor.top = aPanelData.contentRect.top;
this._anchor.top = Math.max(0, aPanelData.contentRect.top);
this._anchor.width = aPanelData.contentRect.width;
this._anchor.height = aPanelData.contentRect.height;
this._anchor.hidden = false;