This doesn't affect current users, only new or reset configurations.
+[Duck Duck Go]
+name=Duck Duck Go
+text=Privacy-aware Web Search
+uri=https://duckduckgo.com/?q=%s
+token=dd
[Yahoo]
name=Yahoo
text=Yahoo Web Search
uri=http://search.yahoo.com/search?p=
-icon=
token=y
[Google]
name=Google
text=Web Search
uri=http://www.google.com/search?q=%s
-icon=
token=g
[Wikipedia]
name=Wikipedia
text=The free encyclopedia
uri=http://en.wikipedia.org/wiki/Special:Search/%s
-icon=
token=wp
[TheFreeDictionary]
name=The Free Dictionary
text=Dictionary, Encyclopedia and Thesaurus
uri=http://www.thefreedictionary.com/%s
-icon=
token=fd