It works OK in Internet explorer, but with Chrome/Firefox I get errors opening the .application file which is downloaded - typically something along the lines of
...application is missing required files
Chrome has an extension to launch ClickOnce applications. It includes a mime type mapper that will correctly launch x-ms-applications when a link to a
.application is clicked.
Adding that will allow you to open the Template Builder from Chrome just as you would in IE, not sure if something similar exists from Firefox.
It's not supported by default, but you can try this add-in: https://chrome.google.com/webstore/detail/clickonce-for-google-chro/eeifaoomkminpbeebjdmdojbhmagnncl
In addition to what Bart & user978511 has suggested to use for Chrome; for FireFox as well there is a similar Add-on - FxClickonce 0.1. This is available at below URL from where you can add it to your FireFox Browser:
Or you may want to search for it in your Browser Add-on Page.
In addition to using ClickOnce add on for Chrome & FireFox OR using Internet Explorer by default to download the Content Porter or Template Builder, you can additionally do the following as well:
cp.applicationfile from your Tridion Installation from following path:
/TridionRoot/Content Porter/ImportExportService/Client/cp.applicationand install using it
TcmTemplateBuilder.applicationfrom your Tridion Installation from the following path:
/TridionWeb/TemplateBuilder/TcmTemplateBuilder.applicationand install using it