diff --git a/static/js/dark.js b/static/js/dark.js
index 075b5a1..6e96997 100644
--- a/static/js/dark.js
+++ b/static/js/dark.js
@@ -539,8 +539,10 @@ function reassemble() {
             var vbox = sym.viewBox.baseVal;
             // TODO: handle browsers without baseVal
             // TODO: handle origins other than 0,0
-            var scale = width / vbox.width;
-            var vscale = height / vbox.height;
+            // Firefox fucks up its dimension calculation
+            var parentDims = trace.parentElement.getBoundingClientRect();
+            var scale = parentDims.width / vbox.width;
+            var vscale = parentDims.height / vbox.height;
             // if(scale > vscale * 1.01 || scale < vscale * 0.99)
             //   console.warn(`incompatible scales: ${scale}, ${vscale}`);
             var paths = symbolCache[sym.id];
diff --git a/static/js/dark.ts b/static/js/dark.ts
index f5c9a7c..aff7b96 100644
--- a/static/js/dark.ts
+++ b/static/js/dark.ts
@@ -553,8 +553,11 @@ function reassemble() {
       // TODO: handle browsers without baseVal
       // TODO: handle origins other than 0,0
 
-      const scale = width / vbox.width;
-      const vscale = height / vbox.height;
+      // Firefox fucks up its dimension calculation
+      const parentDims = trace.parentElement!.getBoundingClientRect();
+
+      const scale = parentDims.width / vbox.width;
+      const vscale = parentDims.height / vbox.height;
       // if(scale > vscale * 1.01 || scale < vscale * 0.99)
       //   console.warn(`incompatible scales: ${scale}, ${vscale}`);
       const paths: string[] | undefined = symbolCache[sym.id];