diff --git a/src/_locales/en/messages.json b/src/_locales/en/messages.json
index 3ff968c50..77414fedd 100644
--- a/src/_locales/en/messages.json
+++ b/src/_locales/en/messages.json
@@ -964,6 +964,10 @@
     "message": "Opens unwanted tabs or windows",
     "description": "An entry in the widget used to select the type of issue"
   },
+  "supportS6Checkbox1": {
+    "message": "Label the web page as &ldquo;NSFW&rdquo; (<a href=\"https://wikipedia.org/wiki/Not_safe_for_work\">&ldquo;Not Safe For Work&rdquo;</a>)",
+    "description": "A checkbox to use for NSFW sites"
+  },
   "supportRedact": {
     "message": "Redact",
     "description": "Text for 'Redact' button"
diff --git a/src/js/support.js b/src/js/support.js
index 040bb71db..0c222f0be 100644
--- a/src/js/support.js
+++ b/src/js/support.js
@@ -212,7 +212,11 @@ function reportSpecificFilterType() {
 function reportSpecificFilterIssue(ev) {
     const githubURL = new URL('https://github.com/uBlockOrigin/uAssets/issues/new?template=specific_report_from_ubo.yml');
     const issueType = reportSpecificFilterType();
-    githubURL.searchParams.set('title', `${reportSpecificFilterHostname()}: ${issueType}`);
+    let title = `${reportSpecificFilterHostname()}: ${issueType}`;
+    if ( document.getElementById('isNSFW').checked ) {
+        title = `[nsfw] ${title}`;
+    }
+    githubURL.searchParams.set('title', title);
     githubURL.searchParams.set('url_address_of_the_web_page', '`' + reportURL.href + '`');
     githubURL.searchParams.set('category', issueType);
     githubURL.searchParams.set('configuration', configToMarkdown(false));
diff --git a/src/support.html b/src/support.html
index 541b147a5..1f9ba9f8d 100644
--- a/src/support.html
+++ b/src/support.html
@@ -87,6 +87,8 @@
                         <option value="breakage" data-i18n="supportS6Select1Option5"></option>
                         <option value="privacy" data-i18n="supportS6Select1Option4"></option>
                     </select>
+                <p>
+                    <label><span class="input checkbox"><input id="isNSFW" type="checkbox"><svg viewBox="0 0 24 24"><path d="M1.73,12.91 8.1,19.28 22.79,4.59"/></svg></span><span data-i18n="supportS6Checkbox1"></span></label>
             </div>
             <div class="hasButtons">
                 <button type="button" data-i18n="supportFindSpecificButton"></button>