Tabs keep crashing after update (157)

Isn't that caused by one of your addons? If you restart into Troubleshoot Mode (from Help menu) or run a new clean profile on the side — is there any change?

i don't think its that either, because again i had no issues before this update i did try troubleshoot mode but i cant tell if it fixed it or not because i have no idea how to reproduce the issue, it happens randomly

It comes from addon interaction, as https://bugzilla.mozilla.org/show_bug.cgi?id=1678734

It might have been a change in networking or security, or access to various internals, but it still must be a bug in extension code to trigger it, like https://bugzilla.mozilla.org/show_bug.cgi?id=1673749

huh, those bugs are also 5 years old, but i wasnt having any issues before october, so im still not sure if it really is addons. how do i figure out which extensions are causing it? going through my about:addons, i havent updated most of them since august/september, but some were recently updated so i'll load firefox without them. do i simply disable the addons or remove them outright? (August)

• Hide shorts for Youtube™ Last Updated August 3, 2026
• Enhancer for YouTube™ Last Updated August 6, 2026
• SteamDB Last Updated August 19, 2026
• Simple Translate Last Updated August 24, 2026
• AdGuard AdBlocker Last Updated August 28, 2026

(September)

• ReelSleek Last Updated September 9, 2026
• Video Download Helper Last Updated September 9, 2026
• Return YouTube Dislike Last Updated September 17, 2026
• uBlock Origin Last Updated September 17, 2026
• Dark Reader Last Updated September 25, 2026
• Proton Pass Last Updated September 26, 2026
• AiBlock for YouTube Last Updated September 28, 2026

(October)

• Augmented Steam Last Updated October 3, 2026
• Indie Wiki Buddy Last Updated October 3, 2026

(Older than months)

• Hide Google AI Overviews Last Updated April 30, 2026
• Load Reddit Images Directly Last Updated July 8, 2026
• SponsorBlock for YouTube - Skip Sponsorships Last Updated July 14, 2026

(Older than years)

• Tabliss Last Updated August 1, 2023
• Redirector Last Updated August 1, 2023
• Multiselect for YouTube™ (disabled) Last Updated October 5, 2024
• Modern for Wikipedia Last Updated September 28, 2025

aand it crashed a few times again, im gonna restart with troubleshoot mode Report ID Date Submitted bp-66398b29-7482-4627-bf15-6fc170261004 04-Oct-26, 19:57 bp-b9b549a8-9a16-49e5-9eb4-307c00261004 04-Oct-26, 19:57 bp-c04db9d3-0cde-4e56-99b4-26bca0261004 04-Oct-26, 19:57 bp-55a60662-d75c-4458-9280-bb4f70261004 04-Oct-26, 17:05 its specifically something from the start of October, i didnt open firefox until 2nd Oct and the nova update was 29th Sept, so its possible that the crashes couldve started earlier

Well, it doesn't have to be, right, but that's what the signature and logs say. 🤷

I can't tell which addon, or, potentially, an interaction of addons would run into this StreamFilterParent issue, however correlations on all the users experiencing this same crash during the last 7 days is:

(100.0% in signature vs 00.16% overall) moz_crash_reason = MOZ_RELEASE_ASSERT(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))))
(87.30% in signature vs 11.62% overall) Addon "uBlock0@raymondhill.net" = true [87.30% vs 22.35% if process_type = content]
(47.62% in signature vs 08.82% overall) useragent_locale = de
(37.30% in signature vs 00.08% overall) Addon "ai-channel-blocker@aiblock.extension" = true
(30.95% in signature vs 02.05% overall) Addon "adblockultimate@adblockultimate.net" = true
(26.98% in signature vs 01.71% overall) Addon "adguardadblocker@adguard.com" = true
(24.60% in signature vs 01.53% overall) Addon "sponsorBlocker@ajay.app" = true
(16.67% in signature vs 00.13% overall) Addon "sponsorBlocker@ajay.app" = true ∧ Addon "adguardadblocker@adguard.com" = true

so that's the data. Something with these addons, or the combination of the addons, and something about something German (don't ask;D)