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+ADDING OR REMOVING ENTRIES IN THE DICTIONARY:
+
+To edit the dictionary use "edit-dictionary" and than copy the
+resulting "en-US.dic" file info place.
+
+UPGRADING TO A NEW UPSTREAM VERSION:
+
+In order to upgrade to the latest dictionary some scripts found in
+SCOWL (the source of the en_US Hunspell dictionary) are used.  The
+en_US dictionary is also generated from the SCOWL source.
+
+1) Unpack the tarball (tar.gz) version of the latest version of SCOWL
+in the current directory and rename the directory from
+"scowl-YYYY.MM.DD" to "scowl".  You can find the latest version at
+http://wordlist.aspell.net/ or
+http://sourceforge.net/projects/wordlist/files/SCOWL/
+
+2) Run the script "./make-new-dict" to generate a new dictionary and
+make sure it runs without any errors.
+
+3) Do a quick sanity check on the resulting dictionary
+"en_US-mozilla.dic".  For example make sure the size is about the same
+(it should likely be slightly large) as the original dictionary.
+
+4) Once everything is okay copy the new dictionary in place using
+"./install-new-dict" and commit the changes.
+
+NOTES ON UPGRADE PROCESS:
+
+The dictionary upgrade scripts work by expanding (i.e. unmunching) the
+affix compression dictionaries to create simple wordlists and use
+those to generate a new dictionary.
+
+The upgrade script expects the original upstream version to be kept in
+the directory "orig".
+
+The install script renames "orig" to "orig-bk" and copies the new
+upstream version to "orig".  The install script also copies the
+original Mozilla dictionary to the "mozilla-bk".
+
+SUBMITTING MOZILLA SPECIFIC CHANGES UPSTREAM:
+
+The upgrade script creates two files that can be reviewed and possible
+submitted upstream.  The file "5-mozilla-removed" lists words that were
+removed in the Mozilla dictionary and the file "5-mozilla-added"
+contains the list of words that were added.  When submitting new words
+upstream Mozilla specific words that are found in "5-mozilla-specific"
+(expanded from mozilla-specific.txt) should likely be removed from the list.
+
+ABOUT mozilla-specific.txt:
+
+This file contains Mozilla-specific words that should not be submitted
+upstream.  For example, "Firefox" goes here. (See bug 237921).
+
+Note that the file 5-mozilla-specific is generated by expanding
+mozilla-specific.txt and should not be edited directly.