“broken” links from plus.google.com

Since a few weeks I noticed that links to “https://plus.google.com/…” are shown as broken, but they are not. You can find a similar thread here: https://www.ads-software.com/support/topic/links-from-plus-google-com-showing-broken-but-theyre-not/

However I investigated a bit and found a possible issue.
The User-Agent sent by this plugin is “Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)”. Google answers the following: “browser-not-supported”.

Please try to adjust the User-Agent and check if the problem is fixed. Maybe it’s also possible to add an option where every user can set a specic User-Agent on his own?