firefox-devtools / firefox-devtools/profiler

Selecting a range over a long profile is janky

Open
#4,400 1 comment 0 reactions 0 assignees View on GitHub
Dominant language
TypeScript
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Forks
491
Avg merge
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Merged PRs (30d)
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Description

Example profile: https://share.firefox.dev/3jUOys0

When I select a range over the timeline, the preview doesn't follow my mouse.

┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-601)

Contributor guide

Open the contributing guide

Research direction

Open the example profile at https://share.firefox.dev/3jUOys0 and reproduce selecting a range over the timeline on the Firefox Profiler web app. No source files or tests are named; investigate the timeline selection and preview behavior, then verify that the preview follows the mouse smoothly on a long profile.

Written by the indexing model from the issue text.

Assessment

Tech stack
react, redux, typescript
Domain
devtools, frontend, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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