diff --git a/CHANGELOG.md b/CHANGELOG.md
index dc9d53e..0b229d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@
 
 ## Unreleased
 
+* Add `browser-timeout` / `browser_timeout` setting that changes the default timeout for browser actions such as `toolproof.querySelector()`
+
 ## v0.9.0 (December 3, 2024)
 
 * Add automatic wait-and-timeout to Toolproof actions that get elements
diff --git a/toolproof/src/definitions/browser/init.js b/toolproof/src/definitions/browser/init.js
index d8c5bd4..93c463c 100644
--- a/toolproof/src/definitions/browser/init.js
+++ b/toolproof/src/definitions/browser/init.js
@@ -75,7 +75,7 @@ class ToolproofHarness {
     }
   }
 
-  async waitFor(q, timeout = 4000) {
+  async waitFor(q, timeout = DEFAULT_TIMEOUT) {
     let start = Date.now();
     const throttle = 50; // TODO: configure
 
@@ -95,7 +95,7 @@ class ToolproofHarness {
     return r;
   }
 
-  async querySelector(s, timeout = 4000) {
+  async querySelector(s, timeout = DEFAULT_TIMEOUT) {
     try {
       return await this.waitFor(() => document.querySelector(s), timeout);
     } catch (e) {
@@ -109,7 +109,7 @@ class ToolproofHarness {
     }
   }
 
-  async querySelectorAll(s, timeout = 4000) {
+  async querySelectorAll(s, timeout = DEFAULT_TIMEOUT) {
     try {
       return await this.waitFor(() => {
         let els = document.querySelectorAll(s);
diff --git a/toolproof/src/definitions/browser/mod.rs b/toolproof/src/definitions/browser/mod.rs
index 273f803..ada00fe 100644
--- a/toolproof/src/definitions/browser/mod.rs
+++ b/toolproof/src/definitions/browser/mod.rs
@@ -35,6 +35,10 @@ fn harnessed(js: String) -> String {
     HARNESS.replace("// insert_toolproof_inner_js", &js)
 }
 
+fn init_script(timeout_secs: u64) -> String {
+    INIT_SCRIPT.replace("DEFAULT_TIMEOUT", &(timeout_secs * 1000).to_string())
+}
+
 /// We want selector steps to timeout before the step itself does,
 /// since it provides a better error. This makes that more likely.
 fn auto_selector_timeout(civ: &Civilization) -> u64 {
@@ -45,6 +49,7 @@ pub enum BrowserTester {
     Pagebrowse(Arc<Pagebrowser>),
     Chrome {
         browser: Arc<Browser>,
+        browser_timeout: u64,
         event_thread: Arc<JoinHandle<Result<(), std::io::Error>>>,
     },
 }
@@ -91,6 +96,7 @@ impl BrowserTester {
 
                 BrowserTester::Chrome {
                     browser: Arc::new(browser),
+                    browser_timeout: params.browser_timeout,
                     event_thread: Arc::new(tokio::task::spawn(async move {
                         loop {
                             let _ = handler.next().await.unwrap();
@@ -105,7 +111,7 @@ impl BrowserTester {
                         "{}/../bin/pagebrowse_manager",
                         env!("CARGO_MANIFEST_DIR")
                     ))
-                    .init_script(INIT_SCRIPT.to_string())
+                    .init_script(init_script(params.browser_timeout))
                     .build()
                     .await
                     .expect("Can't build the pagebrowser");
@@ -120,7 +126,11 @@ impl BrowserTester {
             BrowserTester::Pagebrowse(pb) => {
                 BrowserWindow::Pagebrowse(pb.get_window().await.unwrap())
             }
-            BrowserTester::Chrome { browser, .. } => {
+            BrowserTester::Chrome {
+                browser,
+                browser_timeout,
+                ..
+            } => {
                 let context = browser
                     .create_browser_context(CreateBrowserContextParams {
                         dispose_on_detach: Some(true),
@@ -143,7 +153,7 @@ impl BrowserTester {
                     })
                     .await
                     .unwrap();
-                page.evaluate_on_new_document(INIT_SCRIPT.to_string())
+                page.evaluate_on_new_document(init_script(*browser_timeout))
                     .await
                     .expect("Could not set initialization js");
                 BrowserWindow::Chrome(page)
diff --git a/toolproof/src/options.rs b/toolproof/src/options.rs
index d457e1e..3cc8aca 100644
--- a/toolproof/src/options.rs
+++ b/toolproof/src/options.rs
@@ -119,6 +119,13 @@ fn get_cli_matches() -> ArgMatches {
             .required(false)
             .value_parser(value_parser!(u64)),
         )
+        .arg(
+            arg!(
+                --"browser-timeout" <NUM> "How long in seconds until actions in a browser time out"
+            )
+            .required(false)
+            .value_parser(value_parser!(u64)),
+        )
         .arg(
             arg!(
                 -n --name <NAME> "Exact name of a test to run")
@@ -188,6 +195,11 @@ pub struct ToolproofParams {
     #[setting(default = 10)]
     pub timeout: u64,
 
+    /// How long in seconds until actions in a browser time out
+    #[setting(env = "TOOLPROOF_BROWSER_TIMEOUT")]
+    #[setting(default = 8)]
+    pub browser_timeout: u64,
+
     /// What delimiter should be used when replacing placeholders
     #[setting(env = "TOOLPROOF_PLACEHOLDER_DELIM")]
     #[setting(default = "%")]
@@ -266,6 +278,10 @@ impl ToolproofParams {
             self.timeout = *timeout;
         }
 
+        if let Some(browser_timeout) = cli_matches.get_one::<u64>("browser-timeout") {
+            self.browser_timeout = *browser_timeout;
+        }
+
         if let Some(placeholder_delimiter) = cli_matches.get_one::<String>("placeholder-delimiter")
         {
             self.placeholder_delimiter = placeholder_delimiter.clone();