# Firefox Profiler Deployment (March 20, 2026)

**URL:** <https://discourse.mozilla.org/t/firefox-profiler-deployment-march-20-2026/147677>\
**Category:** Firefox Tooling Announcements\
**Tags:** firefox-profiler\
**Created:** [March 20, 2026, 12:26pm UTC](https://discourse.mozilla.org/t/firefox-profiler-deployment-march-20-2026/147677 "2026-03-20T12:26:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![canova](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/canova/32/68189_2.png) [@canova](https://discourse.mozilla.org/u/canova)\
**Post date:** [March 20, 2026, 12:26pm UTC](https://discourse.mozilla.org/t/firefox-profiler-deployment-march-20-2026/147677/1 "2026-03-20T12:26:52Z")

</div>

The latest version of the [Firefox Profiler](https://profiler.firefox.com/) is now live! Check out the full changelog below to see what’s changed.

Highlights:

- [fatadel] Make network markers in the network panel sticky on click ([#5884](https://github.com/firefox-devtools/profiler/pull/5884))

Other Changes:

- [Markus Stange] Start using const enum ([#5879](https://github.com/firefox-devtools/profiler/pull/5879))
- [Markus Stange] Some performance improvements ([#5878](https://github.com/firefox-devtools/profiler/pull/5878))
- [Nazım Can Altınova] Add startLine, startColumn, sourceMapURL and rename uuid to id in source table ([#5882](https://github.com/firefox-devtools/profiler/pull/5882))
- [Markus Stange] Reduce repetition in profile compacting code ([#5885](https://github.com/firefox-devtools/profiler/pull/5885))
- [Markus Stange] Some more activity graph drawing perf improvements ([#5886](https://github.com/firefox-devtools/profiler/pull/5886))
- [Markus Stange] Improve SampleGraph and HeightGraph performance ([#5897](https://github.com/firefox-devtools/profiler/pull/5897))
- [Nazım Can Altınova] 🔃 Sync: l10n → main (March 20, 2026) ([#5899](https://github.com/firefox-devtools/profiler/pull/5899))

Big thanks to our amazing localizers for making this release possible:

- be: Andrei Mukamolau
- el: Jim Spentzos
- en-GB: Paul
- es-CL: ravmn
- ia: Melo46
- sv-SE: Andreas Pettersson
- tr: Nazım Can Altınova

Find out more about the Firefox Profiler on [profiler.firefox.com](https://profiler.firefox.com)! If you have any questions, join the discussion on our [Matrix channel](https://chat.mozilla.org/#/room/#profiler:mozilla.org)!