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	<title>Firefox/Features/Form Autofill/Debugging - Revision history</title>
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	<updated>2026-06-25T19:56:38Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.mozilla.org/index.php?title=Firefox/Features/Form_Autofill/Debugging&amp;diff=1242713&amp;oldid=prev</id>
		<title>Dimi: Created page with &quot;= Gathering Debug Logs = [https://drive.google.com/file/d/1P94qZvQc3FkLiwhrmEYTSweCGt09ef97/preview Follow the instructions in this video] or the written steps in both section...&quot;</title>
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		<updated>2022-05-31T10:01:44Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;= Gathering Debug Logs = [https://drive.google.com/file/d/1P94qZvQc3FkLiwhrmEYTSweCGt09ef97/preview Follow the instructions in this video] or the written steps in both section...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;= Gathering Debug Logs =&lt;br /&gt;
[https://drive.google.com/file/d/1P94qZvQc3FkLiwhrmEYTSweCGt09ef97/preview Follow the instructions in this video] or the written steps in both sections below.&lt;br /&gt;
== Enable Debug Logging ==&lt;br /&gt;
&lt;br /&gt;
&amp;lt;ol&amp;gt;&lt;br /&gt;
   &amp;lt;li&amp;gt;Enter &amp;quot;about:config&amp;quot; in the URL bar.&amp;lt;/li&amp;gt;&lt;br /&gt;
   &amp;lt;li&amp;gt;You may see a warning screen cautioning you about changing advanced preferences. Click the button to ignore the warning.&amp;lt;/li&amp;gt;&lt;br /&gt;
   &amp;lt;li&amp;gt;Set &amp;#039;&amp;#039;&amp;#039;extensions.formautofill.loglevel&amp;#039;&amp;#039;&amp;#039; pref to &amp;#039;&amp;#039;&amp;#039;Debug&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
   &amp;lt;li&amp;gt;&lt;br /&gt;
      Make sure &amp;#039;&amp;#039;&amp;#039;&amp;#039;&amp;#039;all&amp;#039;&amp;#039;&amp;#039;&amp;#039;&amp;#039; of the following prefs are set to &amp;#039;true&amp;#039;.  (Find a pref by entering its name in the &amp;quot;Filter&amp;quot; box at the top of the page.  Toggle its value by either clicking the ⇌ (Toggle) icon or double-clicking the line.)&lt;br /&gt;
      &amp;lt;blockquote&amp;gt;devtools.browserconsole.contentMessages&amp;lt;br/&amp;gt;devtools.browserconsole.filter.error&amp;lt;br/&amp;gt;devtools.browserconsole.filter.warn&amp;lt;br/&amp;gt;devtools.browserconsole.filter.info&amp;lt;br/&amp;gt;devtools.browserconsole.filter.log&amp;lt;br/&amp;gt;devtools.browserconsole.filter.debug&amp;lt;br/&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
   &amp;lt;/li&amp;gt;&lt;br /&gt;
   &amp;lt;/li&amp;gt;&lt;br /&gt;
   &amp;lt;li&amp;gt;Restart Firefox&amp;lt;/li&amp;gt;&lt;br /&gt;
&amp;lt;/ol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== View the Logging ==&lt;br /&gt;
# To view the logging, open the [https://developer.mozilla.org/en-US/docs/Tools/Browser_Console &amp;#039;&amp;#039;&amp;#039;Browser&amp;#039;&amp;#039;&amp;#039; Console] and/or Browser Content Toolbox (for logs related to in-page stuff) from the Tools → Web Developer menu. If you don&amp;#039;t see these, follow the instructions on the MDN page to enable it.&lt;br /&gt;
#* &amp;#039;&amp;#039;&amp;#039;Note that the above consoles are different than the Web Console that you use for regular web development.&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
# Make sure the log level toggles (&amp;quot;Errors&amp;quot;, &amp;quot;Warnings&amp;quot;, &amp;quot;Logs&amp;quot;, …, &amp;quot;Debug&amp;quot;) are all enabled in the Browser Console. &amp;quot;CSS&amp;quot; should ideally be disabled.&lt;br /&gt;
# Load the problematic web and reproduce the issue in in the browser. You might see messages in the Browser Console like:&lt;br /&gt;
 FormAutofillContent: identifyAutofillFields: &amp;lt;nowiki&amp;gt;https://www.google.com&amp;lt;/nowiki&amp;gt;&lt;br /&gt;
 FormAutofillHandler: Creating new credit card section with flowId  &lt;br /&gt;
&lt;br /&gt;
To copy/save the logs, right-click in an open area of the console and choose &amp;quot;Save all Messages to File&amp;quot; or choose &amp;quot;Copy all Messages&amp;quot; depending on which you prefer. Include them as an &amp;#039;&amp;#039;&amp;#039;attachment&amp;#039;&amp;#039;&amp;#039; on your bug report, not in the body of a comment.&lt;/div&gt;</summary>
		<author><name>Dimi</name></author>
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