Firefox コミュニティフォーラム

I can't sign in on my Yahoo mail account. When i try to sign in i have a massage "Something went wrong We couldn't connect you. Please try again from a different device." On my other devices everything is OK. The problem appears on my desktop using windows 7 but on the same desktop the Yahoo mail work properly with Microsoft Edge. What i can do?

My bookmarks bar, etc have will not synced with my Firefox even though I ran "sync" several times. I haven't used this laptop in quite awhile, so I had to log in and sync. Also in my themes, a certain creator "MaDonna" has error messages on all of them" Cabin in the Mountains (and all others by her) by MaDonna could not be verified for use in Firefox and has been disabled." In my extensions page, I get the same error message. I am beyond frustrated, I'm also very computer literate, but this mess has me baffled and frustrated :(

I have a Windows Surface Pro 8 and when I set it up, I had no issues with the Syncing or Add ons/Themes/Extensions, everything synced just fine. I have Theme categories set up, and that's not even on the Themes page. I have logged into all of my Firefox/Mozilla accounts. Can anyone help?