fix for #59815, as submitted in bug #55293 by bienvenu@netscape.com

r=alecf, sr=waterson (in 55293)

modules/libpref/src/init/all.js

@@ -127,6 +127,7 @@ localDefPref("browser.socksfile_location",      "");
 localDefPref("browser.ldapfile_location",       "");
 
 pref("browser.history.last_page_visited", "");
+pref("browser.history_expire_days", 9);
 
 pref("browser.url_history.URL_1", "");
 pref("browser.url_history.URL_2", "");