There is a very simple fix for this pesky problem when links for some reason stop being clickable in Outlook. Here are two things to try to resolve the problem when this happens to you.
1. Go to your start menu and select default programs. Set Internet Explorer as your default browser. You can do this by either clicking Microsoft or open up custom and then checking make Internet Explorer my default browser. Simple enough, but why do that to turn on links in OUTLOOK? It is simple Outlook is a Microsoft application and when a link is clicked in Outlook, Outlook cannot seem to find the connection of what application to open to use to view the link. Personally I have had this intermittent link problem when I have been using or updating Firefox on my computer. Microsoft just does not play nice with other applications.
2. In Outlook try right clicking on the message and then select Junk Mail and then click add sender to safe sender’s list. This will turn on links and images for that sender.
Both of these options may help you to get back in business when it comes to clicking links in Outlook. For those of you who just really want to use Firefox and not Outlook, well you can try making Firefox the default browser and see if you can click links in Outlook, but you may be using Thunderbird as your default mail program in that case.
Good luck and leave me a comment if you’ve found another way that you like better than mine to turn on links.