Mozilla does not offer telephone support. For Firefox help, use Mozilla’s official Firefox support site. It provides troubleshooting articles and access to the support community. For sign-in, recovery or Sync issues, begin with the separate Mozilla account help section.
Choose the Right Firefox or Mozilla Support Route
- Browser problems: choose Firefox desktop, Android or iOS in the support site’s product menu.
- Mozilla account problems: use the account section for sign-in, two-step authentication, recovery and linked devices.
- Community questions: follow Ask the Community for Firefox. Sign-in is required to submit a question.
Describe which product is affected. A Firefox browser problem and a problem signing into an unrelated website may need different support teams. For example, a retailer controls its own password reset and order records even if you use Firefox to visit it.
Browser Troubleshooting Before You Ask for Help
Write down the device, operating system, Firefox version, exact error message and whether one website or several are affected. Include when the issue began and whether it followed an update, extension change or device change.
Mozilla’s troubleshooting guide walks through checks such as restarting, clearing relevant browsing data and testing Troubleshoot Mode. That diagnostic mode temporarily changes settings including extensions and hardware acceleration to help narrow the cause.
Follow the linked steps in order and read the effects of a change before applying it. Clearing cookies can sign you out of websites; a reset or profile change should not be the first unexplained instruction. Keep a note of what you tried and whether the problem remained.
Mozilla Accounts, Sign-In and Sync
The Mozilla account support page groups help for passwords, recovery, authentication, Sync and linked devices. Identify whether you cannot sign in, cannot access an authentication method, or can sign in but data is not syncing.
Use the recovery guidance that matches your situation. Do not assume that changing a password will recover every missing item. Keep account recovery keys and authentication codes private, and use the official support form for an account-specific request.
Avoid Fake Firefox Telephone Support
Mozilla’s support-scam warning says it does not provide telephone support or endorse outside companies claiming to sell Firefox technical support on its behalf. Pop-ups that demand a call, payment or remote computer access are not an official Firefox support channel.
Open support.mozilla.org directly instead of using a number from a warning screen or search advertisement. Mozilla’s warning page also links to its trademark-abuse reporting route.
Firefox / Mozilla Support FAQs
What is Mozilla’s telephone support number?
Mozilla does not offer telephone support. Use the official online help and product-specific support routes.
Is Firefox support the same as Mozilla account help?
The topics overlap, but browser troubleshooting and account access have separate starting points on Mozilla Support.
Where can I ask the Firefox community a question?
Use Ask the Community on the official Firefox support page and sign in to submit your question.
What should I include in a troubleshooting question?
Include your device, operating system, Firefox version, error message and the steps already tried. Remove personal information from screenshots.
Should I call a number in a Firefox virus-warning pop-up?
No. Mozilla identifies phone-number warnings and unsolicited support offers as common scam tactics.
Can CSN reset my Mozilla account?
No. Follow Mozilla’s official account-recovery guidance and support route.
Share Your Mozilla Support Experience
Read customer reviews or leave your own review. Describe the issue, the contact route you tried and whether it was resolved. Keep passwords, verification codes, account numbers and payment details out of public reviews. A review here does not open a support case.
Browse more internet company support guides.
About This Guide
CustomerServiceNumbers.com is an independent directory and review website, not Mozilla support. We link to official sources and provide practical suggestions for preparing a request. We cannot access accounts, approve refunds or decide warranty and recovery claims.
Official contact routes checked October 23, 2026. Options, hours and policies can change; follow the current instructions on the linked official pages.