When clicking on links that open in a new window, the links don't open and Firefox freezes in a way. I can navigate the page I am on but cannot click to open a new tab or bookmark.

Question

When navigating the internet, if I come across a web page that has a link to open a picture or program in a new window, if I click on it, it does not open. Firefox immediately looses functionality in that I cannot open a new tab with the mouse wheel, right click to open a new tab, or use my bookmarks in either the drop down or toolbar to navigate away. I can usually still navigate the page that I am on, for example, (https://loanconsolidation.ed.gov/AppEntry/apply-online/appindex.jsp), when it freezes I cannot click on any of the content at the center of the page but I can still use the links from the list on the far left. For an example of the pictures, (http://www.insect-sale.com/), if you click on "New Arrivals" at the top of the page it takes you to a list of products that can only be viewed by clicking on them. Usually a picture of the item would open in a small window but it does not and Firefox freezes. This has also happen when I try a view a degree audit on a school's website where a program would usually open in a new window. The only thing I have been able to find that still functions properly when this happens is the home page button. I can click on it or use the wheel to open it in a tab just fine, but if I try and go anywhere else I cannot. The only way I can get Firefox back to normal is to use the Task Manager and end the process. Another thing I have noticed, that may or may not be related; is that my Norton Internet Security toolbar, that should show up below the bookmarks toolbar and above the tabs, only shows up about 1 out of every 10 times I open Firefox. Some days it doesn't show up at all. If it does show up and I log into Identity Safe, the autofill for the programed website works, even if the toolbar doesn't show up the next time I open Firefox.

Answer 1

Go to Tools->Options->Apps
Here you should see two columns: Content Type on the left, Actions on the right.
Find and select excel spreadsheet or any other content type in the left column. There should be a corresponding action in the right column. What is it? You can use the drop-down list to select the option you want:
Always Ask - Firefox will ask each time: What do you want to do with this file?
Save file - Firefox will save this file to your computer
Use - Firefox will give this file to the program to open it
In case of saving, Firefox will either prompt you every time where you want the file to be saved, or save it to the default location. It depends on the preference in
Tools->Options->General->Download