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Bug 2044409 - Filter slider updates while Accessibility shouldUseAutoSize is false - #325

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Bug 2044409 - Filter slider updates while Accessibility shouldUseAutoSize is false#325
moztcampbell wants to merge 1 commit into
mozilla-firefox:autolandfrom
moztcampbell:push-snuzqyowyuqs

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@moztcampbell

@moztcampbell moztcampbell commented Aug 7, 2026

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The engine code doesn't allow setting a fontSizeFactor when auto-sizing is enabled. We previously tried to disable the Slider that updates the size factor in order to prevent update messages, but the disable doesn't take effect until next recomposition. As a result we see crashes in monkey testing which adds noise even if it is highly unlikely for a normal user to hit.

…Size is false

The engine code doesn't allow setting a fontSizeFactor when auto-sizing is
enabled. We previously tried to disable the Slider that updates the size factor
in order to prevent update messages, but the disable doesn't take effect until
next recomposition. As a result we see crashes in monkey testing which adds
noise even if it is highly unlikely for a normal user to hit.
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github-actions Bot commented Aug 7, 2026

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View this pull request in Lando to land it once approved.

@lando-web lando-web Bot changed the title Bug 2044409 - Filter slider updates while Accessibility shouldUseAuto… Bug 2044409 - Filter slider updates while Accessibility shouldUseAutoSize is false Aug 7, 2026
@moztcampbell
moztcampbell requested a review from pollym August 7, 2026 05:11

@ohall-m ohall-m left a comment

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Thanks!

@moztcampbell

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[testing-other] This is a crash that was only triggered by monkey testing and would be clumsy to test in a repeatable way.

@lando-worker

lando-worker Bot commented Aug 11, 2026

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Pull request closed by commit 28ea41d

lando-worker Bot pushed a commit that referenced this pull request Aug 11, 2026
…Size is false r=ohall

The engine code doesn't allow setting a fontSizeFactor when auto-sizing is enabled. We previously tried to disable the Slider that updates the size factor in order to prevent update messages, but the disable doesn't take effect until next recomposition. As a result we see crashes in monkey testing which adds noise even if it is highly unlikely for a normal user to hit.

Pull request: #325
@lando-worker lando-worker Bot closed this Aug 11, 2026
@lando-web
lando-web Bot requested a review from a team August 12, 2026 07:10
@shtrom

shtrom commented Aug 12, 2026

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Why, thanks @lando-web... Better late than never, huh?

@shtrom
shtrom removed the request for review from a team August 12, 2026 07:11
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3 participants