diff --git a/packages/playwright-core/browsers.json b/packages/playwright-core/browsers.json
index f9f4c4faba..d284c60ffa 100644
--- a/packages/playwright-core/browsers.json
+++ b/packages/playwright-core/browsers.json
@@ -21,7 +21,7 @@
     },
     {
       "name": "firefox",
-      "revision": "1382",
+      "revision": "1383",
       "installByDefault": true,
       "browserVersion": "109.0"
     },
diff --git a/packages/playwright-core/src/server/firefox/protocol.d.ts b/packages/playwright-core/src/server/firefox/protocol.d.ts
index 865f177175..e08a66175f 100644
--- a/packages/playwright-core/src/server/firefox/protocol.d.ts
+++ b/packages/playwright-core/src/server/firefox/protocol.d.ts
@@ -104,6 +104,8 @@ export module Protocol {
       }[];
     };
     export type setExtraHTTPHeadersReturnValue = void;
+    export type clearNetworkCacheParameters = void;
+    export type clearNetworkCacheReturnValue = void;
     export type setBrowserProxyParameters = {
       type: ("http"|"https"|"socks"|"socks4");
       bypass: string[];
@@ -1083,6 +1085,7 @@ export module Protocol {
     "Browser.close": Browser.closeParameters;
     "Browser.getInfo": Browser.getInfoParameters;
     "Browser.setExtraHTTPHeaders": Browser.setExtraHTTPHeadersParameters;
+    "Browser.clearNetworkCache": Browser.clearNetworkCacheParameters;
     "Browser.setBrowserProxy": Browser.setBrowserProxyParameters;
     "Browser.setContextProxy": Browser.setContextProxyParameters;
     "Browser.setHTTPCredentials": Browser.setHTTPCredentialsParameters;
@@ -1162,6 +1165,7 @@ export module Protocol {
     "Browser.close": Browser.closeReturnValue;
     "Browser.getInfo": Browser.getInfoReturnValue;
     "Browser.setExtraHTTPHeaders": Browser.setExtraHTTPHeadersReturnValue;
+    "Browser.clearNetworkCache": Browser.clearNetworkCacheReturnValue;
     "Browser.setBrowserProxy": Browser.setBrowserProxyReturnValue;
     "Browser.setContextProxy": Browser.setContextProxyReturnValue;
     "Browser.setHTTPCredentials": Browser.setHTTPCredentialsReturnValue;