diff --git a/rust/perspective-viewer/test/js/stability/leaks.spec.ts b/rust/perspective-viewer/test/js/stability/leaks.spec.ts
index ddb632fb93..f13d5b8a8f 100644
--- a/rust/perspective-viewer/test/js/stability/leaks.spec.ts
+++ b/rust/perspective-viewer/test/js/stability/leaks.spec.ts
@@ -39,7 +39,7 @@ test.describe("Memory Leaks", () => {
 
         // From a helpful blog
         // https://media-codings.com/articles/automatically-detect-memory-leaks-with-puppeteer
-        await page.evaluate(() => window.gc());
+        await page.evaluate(() => window.gc?.());
         const heap1 = await page.evaluate(
             () => performance.memory.usedJSHeapSize,
         );
@@ -61,7 +61,7 @@ test.describe("Memory Leaks", () => {
         // TODO this is very generous memory allowance suggests we
         // leak ~0.1% per instance.
         // TODO: Not yet sure how to access window.gc() in Playwright
-        await page.evaluate(() => window.gc());
+        await page.evaluate(() => window.gc?.());
         const heap2 = await page.evaluate(
             () => performance.memory.usedJSHeapSize,
         );
@@ -84,7 +84,7 @@ test.describe("Memory Leaks", () => {
             await viewer.reset();
         }, viewer);
 
-        await page.evaluate(() => window.gc());
+        await page.evaluate(() => window.gc?.());
         const heap1 = await page.evaluate(
             () => performance.memory.usedJSHeapSize,
         );
@@ -108,7 +108,7 @@ test.describe("Memory Leaks", () => {
             }, viewer);
         }
 
-        await page.evaluate(() => window.gc());
+        await page.evaluate(() => window.gc?.());
         const heap2 = await page.evaluate(
             () => performance.memory.usedJSHeapSize,
         );
@@ -130,7 +130,7 @@ test.describe("Memory Leaks", () => {
             await viewer.reset();
         }, viewer);
 
-        await page.evaluate(() => window.gc());
+        await page.evaluate(() => window.gc?.());
         const heap1 = await page.evaluate(
             () => performance.memory.usedJSHeapSize,
         );
@@ -144,7 +144,7 @@ test.describe("Memory Leaks", () => {
             }, viewer);
         }
 
-        await page.evaluate(() => window.gc());
+        await page.evaluate(() => window.gc?.());
         const heap2 = await page.evaluate(
             () => performance.memory.usedJSHeapSize,
         );
diff --git a/tools/test/playwright.config.ts b/tools/test/playwright.config.ts
index e00fa32737..8faa6c35e1 100644
--- a/tools/test/playwright.config.ts
+++ b/tools/test/playwright.config.ts
@@ -74,6 +74,7 @@ const DEVICE_OPTIONS = {
             ],
         },
     },
+    Firefox: {},
 };
 
 const BROWSER_PACKAGES = [
diff --git a/tools/test/results.tar.gz b/tools/test/results.tar.gz
index bb24cb7a98..f67f1d0772 100644
Binary files a/tools/test/results.tar.gz and b/tools/test/results.tar.gz differ