Add warning about browser.close() affecting profile saving #195
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Co-Authored-By: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>
dprevoznik
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Feb 3, 2026
browsers/termination.mdx
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| Using Playwright/Puppeteer's method `browser.close()` does not delete the browser. Use one of the methods below to delete the browser. | ||
| </Info> | ||
| <Warning> | ||
| Using Playwright/Puppeteer's method `browser.close()` does not delete the browser. Use one of the methods below to delete the browser. Calling `browser.close()` before deleting the Kernel browser will shut down Chromium, causing profile saving to fail. |
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@hiroTamada I think this specific added callout should be added to the Profiles page specifically and is less useful on this page.
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There is a different note we should add it to here: https://www.kernel.sh/docs/browsers/profiles#3-use-the-browser,-then-close-it-to-persist-the-state
dprevoznik
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Feb 3, 2026
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Left a comment on where to place this warning.
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Added a warning that calling browser.close() before deleting kernel browsers will shut down Chromium and cause profile saving to fail. Changed the callout type from Info to Warning to better reflect the severity of this issue.
Files changed:
Created by Mintlify agent
Note
Low Risk
Documentation-only change that adjusts guidance/warnings around browser termination; no runtime behavior is modified.
Overview
Clarifies profile persistence docs to prevent accidental loss of saved state when using
save_changes: true.Updates
browsers/profiles.mdxto warn thatbrowser.close()both does not persist profile state and can shut down Chromium before the Kernel browser is deleted, causing profile saving to fail; reinforces deleting the Kernel browser (or letting it timeout) as the required persistence mechanism.Written by Cursor Bugbot for commit 21bbbe1. This will update automatically on new commits. Configure here.