Enable marquee.

browser/app/profile/all.js

@@ -78,6 +78,7 @@ pref("browser.display.force_inline_alttext", false); // true = force ALT text fo
 // 2 = add extra leading both internal leading and external leading are zero
 pref("browser.display.normal_lineheight_calc_control", 2);
 pref("browser.display.show_image_placeholders", true); // true = show image placeholders while image is loaded and when image is broken
+pref("browser.display.enable_marquee",      true);
 pref("browser.anchor_color",                "#0000EE");
 pref("browser.visited_color",               "#551A8B");
 pref("browser.underline_anchors",           true);

browser/app/profile/firebird.js

@@ -78,6 +78,7 @@ pref("browser.display.force_inline_alttext", false); // true = force ALT text fo
 // 2 = add extra leading both internal leading and external leading are zero
 pref("browser.display.normal_lineheight_calc_control", 2);
 pref("browser.display.show_image_placeholders", true); // true = show image placeholders while image is loaded and when image is broken
+pref("browser.display.enable_marquee",      true);
 pref("browser.anchor_color",                "#0000EE");
 pref("browser.visited_color",               "#551A8B");
 pref("browser.underline_anchors",           true);