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Google vs Mozilla: most-reported complaints compared

Most-reported issues at Google and Mozilla, according to reviewers on Trustpilot — classified by our automated reader and backed by verbatim quotes from distinct reviews. This is a side-by-side of what reviewers report, not a score, rating or recommendation for either company.

Google

TrustScore 2.3 · 10,521 reviews on Trustpilot.

774 reviews analysed, 2020-06-13 to 2026-11-11.

Complaint rate (recent window): 54%

0% of negative reviews get a company reply.

Other25%
Support unhelpful20%
Support unreachable18%
Account/app problems16%
Faulty product10%
“Google AI admitted it lied to me TWICE in the course of 10 minutes over this.”
1★ Trustpilot review, 2026-10-26

Mozilla

TrustScore 1.7 · 500 reviews on Trustpilot.

105 reviews analysed, 2022-09-27 to 2026-11-08.

Complaint rate (recent window): 86%

0% of negative reviews get a company reply.

Faulty product70%
Account/app problems12%
Other12%
Support unhelpful8%
Support unreachable7%
“If you download it as an app and try to delete it, it doesn't actually delete its hides in the background. So it never actually gets deleted.”
1★ Trustpilot review, 2025-07-19

Reported on both

Issues with an evidenced category (at least two verbatim quotes) on both sides.

IssueGoogleMozilla
Other25%12%
Support unhelpful20%8%
Support unreachable18%7%
Account/app problems16%12%
Faulty product10%70%

Method: reviews are classified into a fixed complaint taxonomy by an automated reader; every category shown is backed by at least two verbatim quotes from distinct reviews. Figures are census classifications, not official statistics, and reflect what reviewers reported — not findings of wrongdoing by either company. Not affiliated with, endorsed by, or sponsored by Trustpilot A/S, Google or Mozilla.