Vigia

Firefox 135 end of life (EOL) date and support status

End of life End of life since 2025-03-04 (583 days ago)

Upgrade: Firefox 135 no longer receives fixes. Supported cycles: 157, 153, 115.

ProductFirefox
Version cycle135
StatusEnd of life
Released2025-02-04
Active support until—
End of life2025-03-04
Latest version135.0.1 (2025-02-18)
Last verified2026-10-08

All Firefox versions → · Source: endoflife.date

Frequently asked questions

Is Firefox 135 end of life?

Yes. End of life since 2025-03-04 (583 days ago). It no longer receives security or bug fixes.

When does Firefox 135 reach end of life?

Firefox 135 reached end of life on 2025-03-04.

When was Firefox 135 released?

Firefox 135 was first released on 2025-02-04.

What is the latest Firefox 135 version?

The latest 135 release is 135.0.1, published on 2025-02-18.

Give your AI agent these facts

Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.

claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp

Add to CursorAdd to VS Code★ Star on GitHub

Any other MCP client
{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests

For agents

GET https://vigia.coredls.cloud/v1/eol/firefox/135