They have redone the Canadian Library and Archives site. There are still a few glitches but is said to be better. I didn't use the old one much so I really can't compare. https://library-archives.canada.ca/eng.
Thanks @Half Hour I have made this into a 'sticky' so that it can be easily found for folk researching their ancestors in Canada.
Thanks, Sue. I haven't been there in a while. When I have time, I'll check the links I have to different collections to see what still works!