Mine comes in, I am using FF 42
Intuit servers seem to be having a bandwidth problem yet again, I had to try it in new tabs, a couple of times
Resolution for 'couple of times issue: 'Is QuickBooks On-Line no longer useable on Firefox?' available: Yes.
The couple of times issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the couple of times issue yourself by looking for a resolution described in the article. If it is a complex couple of times issue or you are unable to solve the issue, you may contact us by clicking here or by using other couple of times support options.
For more information about resolving issues related to couple of times in Quickbooks/QBO or to get support for the issue 'Is QuickBooks On-Line no longer useable on Firefox?', click the link below: