Yoroi Firefox Problems?

When i open my Yoroi Firefox Wallet it only says “YoroiLight wallet for Cardano assets” and just a clear white screen below with a blue chat icon to the bottom right… Removing and restoring the wallet dosent help. Iam very very sure its the official one because i store my ADA there since 2 years. last time i checked the wallet without problems: around 2months.

Is this a update issue and i just have to wait till the browser expansion will be updated?

and if not: am i able to restore the wallet even its not a yoroi wallet? on the other “platforms” deadalus, typhon etc.?