mv3 extension is broken

[adguard-bot]

Issue URL (Incorrect Blocking)

https://mangalib.org/ru/2053--tensei-shitara-slime-datta-ken/read/v29/c129?p=1&ui=466251
Username: @Fleepe

Screenshots

Screenshot 1

Screenshot 1 with AdGuard disabled

System configuration

Information	Value
AdGuard product:	AdGuard Browser Extension v5.1.72 MV2
System version:	Windows 11
Browser:	Firefox
Tracking protection:	General settings: Block trackers, Strip URLs from tracking parameters, Hide your search queries, Send Do-Not-Track header Tracking methods: Self-destructing third-party cookies (2880) Miscellaneous: Remove X-Client-Data header from HTTP requests
Filters:	Ad blocking: AdGuard Base, AdGuard Mobile Ads Privacy: AdGuard Tracking Protection, AdGuard URL Tracking Annoyances: AdGuard Cookie Notices, AdGuard Popups, AdGuard Mobile App Banners, AdGuard Other Annoyances, AdGuard Widgets Security: Online Malicious URL Blocklist, Phishing URL Blocklist, Scam Blocklist by DurableNapkin, uBlock Origin – Badware risks Language-specific: AdGuard Russian
Browsing Security:	enabled
Browsing Security statistics:	disabled

[adguard-bot]

Issue URL (Ads)

https://mangalib.org/ru/6478--the-beginning-after-the-end/read/v2/c20?bid=&p=1&ui=8453644

Screenshots

Screenshot 1

Screenshot 2

System configuration

Information	Value
AdGuard product:	AdGuard for Windows v7.20.2 (4988)
System version:	Microsoft Windows NT 10.0.26100.0
Browser:	Firefox
License type:	paid
AdGuard driver:	WFP
Tracking protection:	disabled
DNS filtering:	server: System filters: 1.15, User rules (url: none)
Filters:	Ad blocking: AdGuard Base Privacy: AdGuard Tracking Protection Social widgets: AdGuard Social Media Other: Filter unblocking search ads and self-promotion Language-specific: AdGuard Russian, AdGuard Japanese, AdGuard Spanish/Portuguese
Custom filters:	User rules (url: none)
Browsing Security:	enabled
Browsing Security statistics:	disabled
Userscripts:	AdGuard Extra (url: https://userscripts.adtidy.org/release/adguard-extra/1.0/adguard-extra.user.js) AdGuard Popup Blocker (url: https://userscripts.adtidy.org/release/popup-blocker/2.5/popupblocker.user.js) [VOT] - Voice Over Translation (url: https://raw.githubusercontent.com/ilyhalight/voice-over-translation/master/dist/vot.user.js)
Userstyles:	disabled

Issue configuration

Import

[Fleepe]

The first issue is still present. I fixed it by disabling this function in the "Tracking Protection" tab (highlighted in light gray):

And, although Adguard removes ads, it leaves empty space after it.

[Alex-302]

@Fleepe I can't reproduce both problems at the moment. Please copy versions of enabled filters.

[Fleepe]

Like that? Idk how to do that adg_ext_settings_5.1.80_120525-115531.json

[Alex-302]

No, it does not contain versions.
Just make a screenshot of enabled filters)

Like this (Filters Editor)

Details

[Fleepe]

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[Alex-302]

@Fleepe Filters are actual. Could you please try to reinstall AdGuard?

[Fleepe]

I've done it. Now it looks like this:


Never-ending loading

[windwak3r]

@Fleepe, hello! I couldn't reproduce the infinite loading problem. Is the problem still relevant? If it does please reproduce the problem, then go to about:debugging#/runtime/this-firefox and click Inspect on the AdGuard extension plate. Copy the content of the Console in the opened window and save it to a txt file.
Attach the file to a comment here or send to [email protected] (include [extension] keyword and 3221 in the subject of your email)

Also, what FF version are you using?

[Fleepe]

No, loading problem is no longer relevant. It's just that Adguard took a veeery long time to load, I don't know what the problem was, but now everything is fine. I'm using Firefox 138.0.4 . Here is a file from Console:
console-export-2025-5-22_11-3-46.txt

[windwak3r]

@Fleepe And the issue from https://mangalib.org website? Does it still reproduce?
Please disable any other ad blocking extensions you use in Firefox, clear your browser cookies, update the filters in the extension and check if the problem persists.

If you don't want to clear cookies you can check the website in Firefox incognito mode, but you'll need to give the extension access to run in private windows (you can do it here about:addons by clicking on the extension and choosing Allow near that option)

[Fleepe]

There have been no problems for the last 14 hours.

[windwak3r]

We'll close the issue for now. Please leave a comment if the problem is still relevant.