diff --git a/profiles/home-manager/apps/firefox.nix b/profiles/home-manager/apps/firefox.nix
index f01e15b..765e842 100644
--- a/profiles/home-manager/apps/firefox.nix
+++ b/profiles/home-manager/apps/firefox.nix
@@ -154,6 +154,33 @@ in {
             "_2e5ff8c8-32fe-46d0-9fc8-6b8986621f3c_-browser-action"
           ];
         };
+
+        # Performance
+        "content.notify.interval" = 100000;
+        "gfx.canvas.accelerated.cache-items" = 4096;
+        "gfx.canvas.accelerated.cache-size" = 512;
+        "gfx.content.skia-font-cache-size" = 20;
+        "browser.cache.jsbc_compression_level" = 3;
+        "media.cache_readahead_limit" = 7200;
+        "media.cache_resume_threshold" = 3600;
+        "image.mem.decode_bytes_at_a_time" = 32768;
+        "network.http.max-connections" = 1800;
+        "network.http.max-persistent-connections-per-server" = 10;
+        "network.http.max-urgent-start-excessive-connections-per-host" = 5;
+        "network.dnsCacheExpiration" = 3600;
+        "network.ssl_tokens_cache_capacity" = 10240;
+        "network.dns.disablePrefetch" = true;
+        "network.dns.disablePrefetchFromHTTPS" = true;
+        "network.prefetch-next" = true;
+        "network.predictor.enabled" = true;
+
+        "layout.css.grid-template-masonry-value.enabled" = true;
+        "dom.enable_web_task_scheduling" = true;
+        "dom.security.sanitizer.enabled" = true;
+
+        # RAM
+        "browser.cache.memory.enable" = false;
+        "media.memory_cache_max_size" = 8192;
       };
     };
   };