Choose a snippet from the left toolbar and the code contained in the snippet will be inserted to your code .
Go to the tools menu and click on snippet editor.There you write the title ,description and code of your snippets.Then save the snippets.They will now be available on the left snippets toolbar.You can also select pieces of your code in the main GO!Script window and click on the 'save as snippet' button.
First create a zip file of all the snippets you wish to distribute.Then write a small 'readme.txt' (which should include your name) and add it to the zip file . Then send a link of the zip file and a short description of your library to me by email .
Go to the folder where GO!Script is installed(its in program files if you did not change the location during installation).There you will see a folder called snippets,here you can select and delete snippets.
Go to windows explorer and create a new type called userscript with extension .user.js and associate it with Firefox,but first you must have greasemonkey installed.
If you have any other questions just contact me