$$tag:contains() breaks sites

[Alex-302]

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• Filters were updated before reproducing an issue
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AdGuard Extension version

4.3.46

Browser version

FireFox 126.0.1 (64-bit

OS version

Windows 10 x64

Ad Blocking

AdGuard Base filter

Privacy

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Social

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Annoyances

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Security

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Other

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Language-specific

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What Stealth Mode options do you have enabled?

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Issue Details

Steps to reproduce:

1. Add carscoops.com$$script:contains(error-report.com) to user rules
2. Open carscoops.com

Then disable this rule and check carscoops.com$$script[tag-content="error-report.com"]

Note: $$ rules can work only in Firefox.

Reported by @JobcenterTycoon at AdguardTeam/AdguardFilters#180555 (comment)

Expected Behavior

Site works.

Actual Behavior

Site is hanging.

Screenshots

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Additional Information

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