"Mark it as solved" link sent in email is 404. https://support.mozilla.org/en-US/questions/976639/solve/49833%204?watch=CEKWucBaxy

I asked a question, quickly got the perfect answer, but when I clicked on "Mark it as solved", the link went to a Page Not Found. The same thing happened in the second answer email I got. Here's the link: https://support.mozilla.org/en-US/questions/976639/solve/49833%204?watch=CEKWucBaxy And the full first email: Hi maxread, Waka_Flocka_Flame has posted an answer to your question on support.mozilla.org: Since last upgrade, "Find in page" box only opens in one tab - doesn't stay open at bottom of screen. How do I make it stay open all the time? Waka_Flocka_Flame wrote: It was changed, you can change it back with this addon. • https://addons.mozilla.org/firefox/addon/findbar-tweak If this doesn't solve your problem, let Waka_Flocka_Flame know by replying on the website. If this answer solves your problem, please Mark it as solved Many thanks for the help - please mark my question as solved since I can't do so. Best wishes, mx