This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

After downloading Firefox I get this error everytime I change pages, SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data, why/fix?

  • 3 replies
  • 1 has this problem
  • 2 views
  • Last reply by FredMcD

more options

Getting this javascript error everytime I change pages in Firefox. What causes this and how do I fix it? Thanks: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

Getting this javascript error everytime I change pages in Firefox. What causes this and how do I fix it? Thanks: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

All Replies (3)

more options

Can you reinstall Firefox if the problem continue try to scan your computer and reinstall JamesAPage said

Getting this javascript error everytime I change pages in Firefox. What causes this and how do I fix it? Thanks: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data </blockquo Can the computer/ laptop for virus and reinstall Firefox </blockquote>
more options

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?

more options

Note: All of your Adobe.com programs are out of date.

Also see if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration