updated "Troubleshooting unknown issues"

README.MD

@@ -47,7 +47,8 @@ See https://addons.mozilla.org/en-US/firefox/addon/single-file/statistics/?last=
 
 ## Troubleshooting unknown issues
 Please follow these steps if you find an unknown issue:
-- Reset SingleFile options.
+- Save a page in incognito.
+- If saving page in incognito did not fix the issue, reset SingleFile options.
 - If resetting options did not fix the issue, try to disable all other extensions to see if there is a conflict.
 - If there is a conflict then try to determine against which extension(s).
 - Please report the issue with a short description describing how to reproduce the issue, Browser version, OS name and version here: https://github.com/gildas-lormeau/SingleFile/issues.

extension/ui/pages/help.html

@@ -506,7 +506,8 @@
 				<a id="unknown-issues">Troubleshooting unknown issues</a>
 				<p>Please follow these steps if you find an unknown issue:</p>
 				<ul>
-					<li>Reset SingleFile options.</li>
+					<li>Save a page in incognito.</li>
+					<li>If saving page in incognito did not fix the issue, reset SingleFile options.</li>
 					<li>If resetting options did not fix the issue, try to disable all other extensions to see if there is a conflict.</li>
 					<li>If there is a conflict then try to determine against which extension(s).</li>
 					<li>Please report the issue