# Mozilla Firefox Focus vulnerabilities

Source: https://junglewise.ai/threats/technologies/firefox-focus-for-android  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/firefox-focus-for-android.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Mozilla Firefox Focus: 0 in the last 7 days and 1 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-84135, was published on 1 September 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 3 (1 critical, 0 exploited in the wild)

## About Mozilla Firefox Focus

Firefox Focus for Android is a privacy-focused mobile web browser that automatically blocks trackers and clears browsing history.

## Latest Mozilla Firefox Focus vulnerabilities

- [CVE-2026-84135: Mozilla Firefox Focus for Android other issue](https://junglewise.ai/threats/cve-2026-84135-mozilla-firefox-focus-for-android-other-issue) (critical, CVSS 9.8, published 1 Sep 2026)
- [CVE-2026-8945: Mozilla Firefox for Android sandbox escape](https://junglewise.ai/threats/cve-2026-8945-mozilla-firefox-for-android-sandbox-escape) (info, CVSS 8.8, published 19 May 2026)
- [CVE-2026-2794: Mozilla Firefox uninitialized memory disclosure in ContentParent](https://junglewise.ai/threats/cve-2026-2794-mozilla-firefox-uninitialized-memory-disclosure-in-contentparent) (high, CVSS 7.5, published 24 Feb 2026)

## Most severe Mozilla Firefox Focus vulnerabilities

- [CVE-2026-84135: Mozilla Firefox Focus for Android other issue](https://junglewise.ai/threats/cve-2026-84135-mozilla-firefox-focus-for-android-other-issue) (critical, CVSS 9.8, published 1 Sep 2026)
- [CVE-2026-2794: Mozilla Firefox uninitialized memory disclosure in ContentParent](https://junglewise.ai/threats/cve-2026-2794-mozilla-firefox-uninitialized-memory-disclosure-in-contentparent) (high, CVSS 7.5, published 24 Feb 2026)
- [CVE-2026-8945: Mozilla Firefox for Android sandbox escape](https://junglewise.ai/threats/cve-2026-8945-mozilla-firefox-for-android-sandbox-escape) (info, CVSS 8.8, published 19 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 1 | 1 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Mozilla technologies

- [Mozilla Firefox](https://junglewise.ai/threats/technologies/firefox): 869 vulnerabilities
- [Mozilla Firefox ESR](https://junglewise.ai/threats/technologies/firefox-esr): 642 vulnerabilities
- [Mozilla Thunderbird](https://junglewise.ai/threats/technologies/thunderbird): 396 vulnerabilities
- [Mozilla Thunderbird-Esr](https://junglewise.ai/threats/technologies/thunderbird-esr): 86 vulnerabilities
- [Mozilla Firefox for iOS](https://junglewise.ai/threats/technologies/firefox-for-ios): 17 vulnerabilities
- [Mozilla Firefox for Android](https://junglewise.ai/threats/technologies/firefox-for-android): 11 vulnerabilities
- [Mozilla Firefox Mobile](https://junglewise.ai/threats/technologies/firefox-mobile): 7 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Mozilla Firefox Focus vulnerabilities", https://junglewise.ai/threats/technologies/firefox-focus-for-android, 11 November 2026.