diff --git a/src/_locales/en/messages.json b/src/_locales/en/messages.json
index 3286941..1e8bf1a 100644
--- a/src/_locales/en/messages.json
+++ b/src/_locales/en/messages.json
@@ -720,6 +720,15 @@
   "TabGuard_optEnabled": {
     "message": "Enabled everywhere"
   },
+  "TabGuard_optPromptNever": {
+    "message": "Never prompt before anonymization"
+  },
+  "TabGuard_optPromptPost": {
+    "message": "Prompt before anonymizing POST submissions"
+  },
+  "TabGuard_optPromptAlways": {
+    "message": "Prompt before anonymizing any request"
+  },
   "TabGuard_optIncognito": {
     "message": "Enabled in Private Browsing only"
   },
diff --git a/src/_locales/it/messages.json b/src/_locales/it/messages.json
index c90d4b7..b9d4072 100644
--- a/src/_locales/it/messages.json
+++ b/src/_locales/it/messages.json
@@ -959,6 +959,15 @@
         "message": "Disabilitata",
         "description": ""
     },
+    "TabGuard_optPromptNever": {
+        "message": "Se necessario anonimizza le richieste senza avvisare"
+    },
+    "TabGuard_optPromptPost": {
+        "message": "Avvisa prima di anonimizzare le richieste con invio di dati (POST)"
+    },
+    "TabGuard_optPromptAlways": {
+        "message": "Avvisa prima di anonimizzare qualunque richiesta"
+    },
     "TabGuard_forget": {
         "message": "Dimentica le eccezioni",
         "description": ""
diff --git a/src/bg/Defaults.js b/src/bg/Defaults.js
index 820c963..e419653 100644
--- a/src/bg/Defaults.js
+++ b/src/bg/Defaults.js
@@ -34,6 +34,7 @@ var Defaults = {
         global: false,
         xss: true,
         TabGuardMode: "incognito",
+        TabGuardPrompt: "post",
         cascadeRestrictions : false,
         overrideTorBrowserPolicy: false, // note: Settings.update() on reset will flip this to true
       }
diff --git a/src/bg/TabGuard.js b/src/bg/TabGuard.js
index 41f801d..40ea8ad 100644
--- a/src/bg/TabGuard.js
+++ b/src/bg/TabGuard.js
@@ -158,7 +158,12 @@ var TabGuard = (() => {
 
         let quietDomains = filteredGroups[tabDomain];
         if (mainFrame) {
-          let mustPrompt = (!quietDomains || [...otherDomains].some(d => !quietDomains.has(d)));
+          const promptOption = ns.sync.TabGuardPrompt;
+
+          const mustPrompt = promptOption !== "never" &&
+            (promptOption !== "post" || request.method === "POST") &&
+            (!quietDomains || [...otherDomains].some(d => !quietDomains.has(d)));
+
           if (mustPrompt) {
             return (async () => {
               let options = [
@@ -169,7 +174,9 @@ var TabGuard = (() => {
                 title: _("TabGuard_title"),
                 message: _("TabGuard_message", [tabDomain, [...otherDomains].join(", ")]),
                 options});
-              if (ret.button !== 0) return {cancel: true};
+              if (ret.button !== 0) {
+                return {cancel: true};
+              }
               let list = ret.option === 0 ? filteredGroups : allowedGroups;
               otherDomains.add(tabDomain);
               for (let d of otherDomains) list[d] = otherDomains;
diff --git a/src/ui/options.html b/src/ui/options.html
index 9797378..d43301d 100644
--- a/src/ui/options.html
+++ b/src/ui/options.html
@@ -177,6 +177,13 @@ SPDX-License-Identifier: GPL-3.0-or-later
        <input id="tgm-off" type="radio" name="TabGuardMode" value="off"/><label for="tgm-off">__MSG_TabGuard_optDisabled__</label>
       </span>
     </div>
+    <div class="opt-group">
+      <span id="tgPrompt">
+       <input id="tgp-never" type="radio" name="TabGuardPrompt" value="never" /><label for="tgm-never">__MSG_TabGuard_optPromptNever__</label>
+       <input id="tgm-post" type="radio"  name="TabGuardPrompt" value="post" checked="checked"/><label for="tgm-post">__MSG_TabGuard_optPromptPost__</label>
+       <input id="tgm-always" type="radio" name="TabGuardPrompt" value="always"/><label for="tgm-always">__MSG_TabGuard_optPromptAlways__</label>
+      </span>
+    </div>
     <div id="tgForget"><button id="tgForgetButton">__MSG_TabGuard_forget__</button></div>
     </fieldset>
   </section>
diff --git a/src/ui/options.js b/src/ui/options.js
index 20c20ef..dfb5d6e 100644
--- a/src/ui/options.js
+++ b/src/ui/options.js
@@ -142,6 +142,7 @@ document.querySelector("#version").textContent = _("Version",
   });
 
   UI.wireChoice("TabGuardMode");
+  UI.wireChoice("TabGuardPrompt");
 
   document.querySelector("#tgForgetButton").onclick = e => {
     e.target.disabled = true;
diff --git a/src/ui/ui.css b/src/ui/ui.css
index 02f0dc2..9add69f 100644
--- a/src/ui/ui.css
+++ b/src/ui/ui.css
@@ -11,8 +11,13 @@
   flex-flow: row wrap;
   padding: .5em 0;
 }
+
 :is(section, .opt-group) ~ :is(.opt-group, section, fieldset) {
-  border-top: 2px dotted var(--bg-color1);
+  border-top: 2px solid var(--tab-color1);
+}
+
+fieldset > .opt-group ~ .opt-group {
+  border: none;
 }
 
 .opt-group > span {
@@ -22,6 +27,8 @@
   align-items: baseline;
 }
 
+.opt-group input[type="radio"] ~ label { margin-right: 1em};
+
 @media (max-width: 550px) {
 
   .sites td.url {