1731839 - ensonhaber.com is unusable on Firefox with Strict Enhanced Tracking Protection

Status: RESOLVED WORKSFORME

(Core :: Privacy: Anti-Tracking, defect, P3)

Description

[furkan]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:92.0) Gecko/20100101 Firefox/92.0

Steps to reproduce:

1. Be on latest stable Firefox 92 (AFAIK this also happened on Firefox 91 too)
2. Enable Enhanced Tracking Protection on Strict mode
3. Visit https://ensonhaber.com/
4. Watch how the site will become unresponsive, your memory start leak and Firefox will pop-up a banner to stop executing this website

Actual results:

The site became unresponsive and memory started to leak (also CPU usage increased heavily)

Expected results:

The site should have loaded fine without any memory leaks.

Comment 1

[furkan]

Some additional context:
I use Fedora Linux 35, I use Firefox from Flathub (https://flathub.org/apps/details/org.mozilla.firefox) this also happens on distro provided Firefox too. Here is a video. https://streamable.com/hkdlxi

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Privacy: Anti-Tracking' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 3

[Tim Huang[:timhuang]]

It seems like a shimming related issue.

Tom, would you be able to take a look? Thanks.

Comment 4

[Thomas Wisniewski [:twisniewski]]

This doesn't reproduce for me. I solved a similar issue in bug 1762851 recently, with an update to the SmartBlock GPT shim, which is also kicking in on this page, so I suspect that fix also fixed this. If it's still reproducing in Firefox 102 or higher for someone else, please reopen this issue and let us know.