Lost blockchain

I have Litecoin wallet on an old computer. It was up to date about 3-4 weeks ago. Now,
when trying to update I’m 7 year behind! What happened? Can I recover the lost blockchain. Only change was to update firefox. But moved old data into firefox which had no
difference to blockchain.
Any ideas?
Thanks,
reddogg

my best advice is to get a new wallet, specially since

  1. you’re using an old computer
  2. you’re not using it often.

if your amount is considerable, I would suggestyou to purchase a hardware wallet.
If you consider it a small amount, may be go with electrum.

may I know how much are you holding?

I don’t want to install a new wallet if I can avoid it. I noticed that some of the litecoin files are
very large. I don’t think upgrading Firefox caused the problem. I just need the litecoin wallet to
recognize that most of the blockchain is already on the hard drive. I don’t want to start from scratch. I have no coins in the wallet. I was just keeping it up to date, so I can purchase when
needed.
thanks,
reddogg

Electrum takes just a few seconds to sync.