Browser hangs on connect.mozilla.org in Firefox

[adguard-bot]

Issue URL (Incorrect Blocking)

https://connect.mozilla.org/t5/ideas/support-text-fragments-and-create-uri-from-the-find-bar/idi-p/26466

Comment

The entire browser hangs (for more than 30s). It's like AdGuard compromises the browser proccess. Does not reproduce if after the first time, you press reload without clearing cache. Reproduces with ctrl+f5 (shift+reload)

Screenshots

Screenshot 1

Screenshot 1 with AdGuard disabled

System configuration

Information	Value
AdGuard product:	AdGuard Browser Extension v4.2.209
System version:	Windows 10
Browser:	Firefox
Stealth mode:	disabled
Filters:	Ad Blocking: AdGuard Base, AdGuard Mobile Ads, EasyList Privacy: AdGuard Tracking Protection, EasyPrivacy Social Widgets: AdGuard Social Media Annoyances: AdGuard Cookie Notices, AdGuard Popups, AdGuard Mobile App Banners, AdGuard Other Annoyances, AdGuard Widgets, Adblock Warning Removal List Security: NoCoin Filter List Language-specific: AdGuard Spanish/Portuguese
Other extensions used:	adguard dns (doh via firefox)

[pedrohgmacedo]

At peak adguard seems to use over 2GB

[Yuki2718]

I can reproduce, not a filter issue but doesn't happen if AG is turned off. @Alex-302

[maximtop]

After peak passes does the memory consumption returns to the previous values? Could you please collect profile during memory peaks?