You may have run across sites that require you to use a specific browser to run correctly.
For example Netflix offers instant streaming movies, but you have to use internet explorer. If you forget, you are prompted to open it instead. If you use a different default browser you likely have to go through the hassle of closing and reopening the site in a different browser.
Why not just create a shortcut which does that for you?
Right click your desktop.
Create new shortcut and type the following in the ‘location of the item’ (or substitute wherever you have ie installed)
Make sure to include a space between the browser application executable and the site name.
“C:\Program Files\Internet Explorer\iexplore.exe” http://www.netflix.com/
create shortcut
finish shortcut
This will work for other browsers as well, just substitute the browser application location in front of the site address you want to open.