Modify the formula in the field to replace JavaScript
If you have not yet visited the page Modify your button field type from Formula URL to Formula Rich Text, do so before making the following changes.
Note
If you're already familiar with this process, change the field type of the fields that run your extensions from Formula URL to Formula Rich Text.
Edit the field properties for your extension fields

Identify the JavaScript lines in your formula

Delete the highlighted code
Delete everything highlighted in the previous image, including everything in the first line up to the https. This URL is different for everyone and for each extension.
Add a double quote to the beginning of the URL

Add code to the beginning of line 1
Copy the following line and add it to the beginning of line 1:
var text url =Important
Make sure you copy this line into your formula before continuing.
Paste it into the formula. It should look something like this:

Note
Everyone's button formula looks a little different. Focus on finding the JavaScript and removing it.
Add code to the end of your formula
Copy the following line and add it to the end of your formula, where you deleted the JavaScript earlier:
;
"<a class='Vibrant Success OpenAsPopup' data-height=1000 data-width=1000 data-refresh=true href=\"" & $url & "\" > (Name Your Button Here...) </a>"Important
Make sure you copy this line into your formula before continuing.
Paste it into the formula. It should look something like this:

Customize your completed formula
This is a completed formula. By using Formula Rich Text fields, you have advanced customization features within your button formula that you can easily modify to fit your needs.

Customize your button styling
Learn more about Rich Text button styling and customizing. This includes different colors for the button, recommended height and width for each extension, and recommended ways to name the button.