Firefox 150

End of life

150.0.3 Release notes ↗

Is Firefox 150 still supported?

No

Firefox 150 reached end of life on May 18, 2026 (4 months ago). It no longer gets updates, including security fixes. Upgrade to Firefox 157 (latest 157.0.1).

Released
Apr 21, 2026
End of life
May 18, 2026
4 months ago
Latest version
150.0.3
May 12, 2026

Upgrade path

The recommended upgrade is Firefox 157, currently at 157.0.1.

Not sure? Run firefox --version

Quick answers

Is Firefox 150 still supported?
No. Firefox 150 reached end of life on May 18, 2026 (4 months ago). It no longer gets updates, including security fixes. Upgrade to Firefox 157 (latest 157.0.1).
When is Firefox 150 end of life?
Firefox 150 reached end of life on May 18, 2026. It gets no more updates, including security fixes.
What is the latest version of Firefox 150?
The latest Firefox 150 release is 150.0.3, released on May 12, 2026.
When was Firefox 150 released?
Firefox 150 was released on Apr 21, 2026.
What should I upgrade Firefox 150 to?
The recommended upgrade is Firefox 157, currently at 157.0.1.
How do I check which Firefox version I have?
Run firefox --version, then paste the result into the “Am I up to date?” box on this page.

Other Firefox branches

All 58 →
  • 156 End of life
  • 155 End of life
  • 154 End of life
  • 153 (ESR) Supported
  • 152 End of life
  • 151 End of life
  • 150 End of life
  • 149 End of life
  • 148 End of life
  • 147 End of life
  • 146 End of life
  • 145 End of life
  • 144 End of life

← Firefox 149 Firefox 151 →

Firefox 150 release history

RSS

Release dates for 4 Firefox 150 versions, newest first.

  1. 150.0.3
  2. 150.0.2
  3. 150.0.1
  4. 150.0

Keep track

Firefox 150 latest version badge

People who run Firefox 150 also check

Official release policy · Checked 1 hour ago