Don't push pass through mode multiple times. Closes issue #641.

common/content/events.js

@@ -1586,7 +1586,10 @@ var Events = Module("events", {
 
         mappings.add([modes.MAIN],
             ["<C-z>", "<pass-all-keys>"], "Temporarily ignore all " + config.appName + " key bindings",
-            function () { modes.push(modes.PASS_THROUGH); });
+            function () {
+                if (modes.main != modes.PASS_THROUGH)
+                    modes.push(modes.PASS_THROUGH);
+            });
 
         mappings.add([modes.MAIN, modes.PASS_THROUGH, modes.QUOTE],
             ["<C-v>", "<pass-next-key>"], "Pass through next key",

common/modules/contexts.jsm

@@ -47,7 +47,7 @@ var Group = Class("Group", {
 
     makeArgs: function makeArgs(doc, context, args) {
         let res = update({ doc: doc, context: context }, args);
-        return update(this.argsExtra(res), args);
+        return update(res, this.argsExtra(res), args);
     },
 
     get toStringParams() [this.name],
@@ -194,7 +194,7 @@ var Contexts = Module("contexts", {
         let contextPath = file.path;
         let self = Set.has(plugins, contextPath) && plugins.contexts[contextPath];
 
-        if (!self && isPlugin)
+        if (!self && isPlugin && false)
             self = Set.has(plugins, id) && plugins[id];
 
         if (self) {

common/modules/options.jsm

@@ -798,8 +798,8 @@ var Options = Module("options", {
                 util.makeDTD(
                     iter(([["option", o.name, "default"].join("."),
                            o.type === "string" ? o.defaultValue.replace(/'/g, "''") :
-                           o.value === true    ? "on"  :
-                           o.value === false   ? "off" : o.stringDefaultValue]
+                           o.defaultValue === true  ? "on"  :
+                           o.defaultValue === false ? "off" : o.stringDefaultValue]
                           for (o in self)),
 
                          ([["option", o.name, "type"].join("."), o.type] for (o in self)),

common/modules/styles.jsm

@@ -74,11 +74,11 @@ update(Sheet.prototype, {
             return preamble + css;
 
         let selectors = filter.map(function (part)
-                                    !/^(?:[a-z-]+[:*]|[a-z-.]+$)/i.test(part) ? "regexp(" + (".*(?:" + part + ").*").quote() + ")" :
+                                    !/^(?:[a-z-]+[:*]|[a-z-.]+$)/i.test(part) ? "regexp(" + Styles.quote(".*(?:" + part + ").*") + ")" :
                                        (/[*]$/.test(part)   ? "url-prefix" :
                                         /[\/:]/.test(part)  ? "url"
                                                             : "domain")
-                                       + '("' + part.replace(/"/g, "%22").replace(/\*$/, "") + '")')
+                                       + '(' + Styles.quote(part.replace(/\*$/, "")) + ')')
                               .join(",\n               ");
 
         return preamble + "@-moz-document " + selectors + " {\n\n" + css + "\n\n}\n";
@@ -530,7 +530,17 @@ var Styles = Module("Styles", {
                 | [^;}\s]+
             )
         ]]>, "gix", this)
-    })
+    }),
+
+    /**
+     * Quotes a string for use in CSS stylesheets.
+     *
+     * @param {string} str
+     * @returns {string}
+     */
+    quote: function quote(str) {
+        return '"' + str.replace(/([\\"])/g, "\\$1").replace(/\n/g, "\\00000a") + '"';
+    },
 }, {
     commands: function (dactyl, modules, window) {
         const { commands, contexts, styles } = modules;