The browser will still work even though it is not supported.
You can use Firefox as well.
Resolution for 'alternate browser issue: 'Now using Chrome. Is there an alternate browser that Intuit recommends?' available: Yes.
The alternate browser 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 alternate browser issue yourself by looking for a resolution described in the article. If it is a complex alternate browser issue or you are unable to solve the issue, you may contact us by clicking here or by using other alternate browser support options.
For more information about resolving issues related to alternate browser in Quickbooks/QBO or to get support for the issue 'Now using Chrome. Is there an alternate browser that Intuit recommends?', click the link below: