Here is an extension for FireFox that I've written

printpreview - creates a Print Preview toolbar button and context menu item
  version 0.7.1.4 (for the default Firefox theme)  
  version 0.7.2.4 (for the Qute Firefox theme)     

My thanks to Arvid Axelsson for providing a Qute print preview icon!

Here is a complete list of all the Informix tools that I've written

dollarsToWords() - convert a numeric dollar amount to words
  version 1.0     
	
recursion() - example code for handling recursion in 4GL
  version 1.0     
	
blob_to_char() - copy a 4GL TEXT type to an I4GL CHAR type
  version 1.0     
	
dblist - dumps the contents of a database table to stdout (C-ISAM)
  version 1.0     
	
dbbeauty - 4GL program beautifier
  version 1.2     
	
dbdatabases - prints a database information report
  version 1.1     
	
dbinfo - prints the schema of a database table to stdout (ESQL/C)
  version 4.4     
	
dblist - dumps the contents of a database table to stdout (ESQL/C)
  version 4.0     
	
dbloader, dbunloader - generates "load/unload" statements
  version 1.4     
	
dbreorg - generates SQL to reorg an Informix-ONLINE database table
  version 1.8     
	
dbrepair - repair "dirpath" column in "systables" table
  version 1.1     
	
dbreserved - scans Informix database tables for key words
  version 1.2     
	
dbrowlock - set lock mode of a database table to row-level
  version 1.1     
	
dbsyntax - checks the syntax of SQL statements
  version 1.0     
	
dbupdates - generates SQL to update stats for a database or table
  version 1.1     
	
db4glgen - generates 4gl code for a basic data-entry screen
  version 4.03    
	
db4jsgen - generates Four J's 4gl code for a basic data-entry screen
  version 1.12    
	
dbform - generates default data entry forms
  version 1.2     
	
dbinfo - prints the schema of a database table to stdout (SHELL)
  version 4.5     
	
vie - views/corrects 4GL error files
  version 1.2