diff --git a/common/content/abbreviations.js b/common/content/abbreviations.js
index 12514b2b..77634b05 100644
--- a/common/content/abbreviations.js
+++ b/common/content/abbreviations.js
@@ -103,7 +103,7 @@ var AbbrevHive = Class("AbbrevHive", Contexts.Hive, {
         this._store = {};
     },
 
-    /** @property {boolean} True if there are no abbreviations */
+    /** @property {boolean} True if there are no abbreviations. */
     get empty() !values(this._store).nth(util.identity, 0),
 
     /**
diff --git a/common/content/buffer.js b/common/content/buffer.js
index aa5f091e..c1cd1b4c 100644
--- a/common/content/buffer.js
+++ b/common/content/buffer.js
@@ -482,7 +482,7 @@ var Buffer = Module("buffer", {
     },
 
     /**
-     * Find the counth last link on a page matching one of the given
+     * Find the *count*th last link on a page matching one of the given
      * regular expressions, or with a @rel or @rev attribute matching
      * the given relation. Each frame is searched beginning with the
      * last link and progressing to the first, once checking for
@@ -927,7 +927,7 @@ var Buffer = Module("buffer", {
      *          url: The URL to view.
      *          doc: The document to view.
      *          line: The line to select.
-     *          column: the column to select.
+     *          column: The column to select.
      *
      *      If no URL is provided, the current document is used.
      *  @default The current buffer.
diff --git a/common/modules/base.jsm b/common/modules/base.jsm
index d1ddb39e..c4c60167 100644
--- a/common/modules/base.jsm
+++ b/common/modules/base.jsm
@@ -69,7 +69,7 @@ if (!Object.defineProperties)
 if (!Object.freeze)
     Object.freeze = function freeze(obj) {};
 if (!Object.getPropertyDescriptor)
-    Object.getPropertyDescriptor = function getOwnPropertyDescriptor(obj, prop) {
+    Object.getPropertyDescriptor = function getPropertyDescriptor(obj, prop) {
         try {
             let desc = {
                 configurable: true,
diff --git a/pentadactyl/NEWS b/pentadactyl/NEWS
index ce6f627a..848c357d 100644
--- a/pentadactyl/NEWS
+++ b/pentadactyl/NEWS
@@ -115,7 +115,7 @@
       - Added 's' and 'e' flags to :pageinfo command. [b7]
       - Added :pintab and :unpintab commands. [b7]
       - Extension manipulation commands, including :extenable, :extdisable,
-        and :exttoggle, now accept a -types argument.
+        and :exttoggle, now accept a -types argument. [b7]
       - :tabmove now moves to the position of tab N, not after it.
         Without arguments it no longer moves the tab to the end of
         the list. [b7]