Mozilla: most-reported complaints
- Complaints in recent reviews
- 86% of 105 recent reviews analysed
- Most-reported issue
- Faulty product 70% of complaints
- Company replies
- 0% of negative reviews, typically within a day
- TrustScore
- 1.7 from 500 total reviews
- Review window analysed
- 2022-09-27 to 2026-11-08 105 reviews
- Sector
- Other sectors
Automated analysis of 105 public Trustpilot reviews published 2022-09-27 to 2026-11-08. TrustScore 1.7 from 500 total reviews — see the Trustpilot page. Quick answer: is Mozilla legit? Issues below reflect what reviewers reported, not findings of wrongdoing.
Reviewers most often report issues with faulty products, which accounted for 70% of the 90 complaints identified in the analyzed period. Account and app problems were the next most common concern, representing 12% of complaints, followed by other issues at 12%. Support unhelpfulness was reported by 8% of reviewers. The data shows a flat trend for faulty product complaints, while account problems and other issues have rising trends, and support complaints have a falling trend.
Trustpilot lists this business as no longer collecting reviews. New reviews are not currently being gathered for its profile. See the Trustpilot page for the current status.
What are the most common complaints about Mozilla?
| Issue | Share | Count | Trend | By month |
|---|---|---|---|---|
| Faulty product | 70% | 63 | steady | |
| Account/app problems | 12% | 11 | rising since 2025-10 | |
| Other | 12% | 11 | rising since 2025-10 | |
| Support unhelpful | 8% | 7 | falling | |
| Support unreachable | 7% | 6 | falling |
Faulty product
63 reports · 70% of complaints“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.”
3 readers marked this review helpful on Trustpilot.
“They take over apps such as pocket where articles can be stored but then announce they are closing down.”
3 readers marked this review helpful on Trustpilot.
“Mozilla bought out Fakespot (an extremely important and necessary tool) and then shut it down.”
2 readers marked this review helpful on Trustpilot.
Account/app problems
11 reports · 12% of complaints“Mozilla Firefox hacked my browsers disabling and even deleting all my perfectly safe and working extensions.”
1 reader marked this review helpful on Trustpilot.
“Another update, another round of manually copying profile folders to restore all profiles”
1 reader marked this review helpful on Trustpilot.
“all my bookmarks and tabs and saved passwords are gone. I cant seem to restore them.”
1 reader marked this review helpful on Trustpilot.
Other
11 reports · 12% of complaints“Instead it chose to waste its potential on silly politics and infuriating UX decisions (e.g. why would you force your users to restart Firefox?).”
3 readers marked this review helpful on Trustpilot.
“Mozilla seem to have decided to compete with Microsoft and Google in their aggressive, our way or the highway attitude”
2 readers marked this review helpful on Trustpilot.
“Decided to illegally change TOS to steal data, trace mine and my kids location, and feed my data to AI”
1 reader marked this review helpful on Trustpilot.
Support unhelpful
7 reports · 8% of complaints“the connection process appeared to be changed, not asking me my 2FA but sending a code on a (potentially compromised) email account instead.”
“It crashes almost daily on Android.”
“unconsented update trashing all my bookmarks and logins. giving me a useless and slow browser.”
Support unreachable
6 reports · 7% of complaints“Can't reach out to Mozilla directly so there no support whatsoever.”
1 reader marked this review helpful on Trustpilot.
“Lately the 'support' has stopped responding at all. They seem to have an inordinate amount of trouble figuring out new problems”
“Once you get a bug there is no support apart from their forums which no one seems to use.”
The company has not claimed its Trustpilot profile. We last checked this profile on 2026-11-10 and found 1 new review. These are facts Trustpilot publishes about the profile, as of our last harvest.
TrustScore over time
1.7 → 1.7 across 5 census measurements since 2026-10-17. Our own record, independent of Trustpilot’s display.
Reply behaviour over time
Solid: % of negative reviews replied to. Dashed: typical days to reply. Both as reported on this company’s Trustpilot profile, recorded whenever our census re-checked it and a figure had changed — the gaps between points are not equal:
Show all 5 dated readings
2026-10-17 (0%, 0.0d) · 2026-10-20 (0%, 0.0d) · 2026-10-23 (0%, 0.0d) · 2026-11-07 (0%, 0.0d) · 2026-11-10 (0%, 0.0d).
Severity: 16% of this company’s 90 graded complaints were classified as severe (money lost, an essential service cut off, or a problem unresolved for months). See the harm index.
Reviewers here waited a median of 0.9 days between the experience and publishing their negative review (92 reviews record both dates).
Sector benchmark: faulty product makes up 70% of this company’s complaints vs a 25% median across 172 ranked companies in its sector.
Review velocity: 129 of this company’s 500 Trustpilot reviews (26%) were written in the last 12 months.
Other UK companies with evidenced “Faulty product” complaints
See all companies by issue: Faulty product · Account/app problems · Support unhelpful · Support unreachable · Sector table: Other sectors in the UK
Compare Mozilla with…
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. Trends are computed from dated review counts only. Negative reviews are deliberately over-sampled for evidence depth; headline percentages use an unbiased recent sample only. Report updated 2026-11-10.