#4251 closed defect (fixed)
Adblock Plus hangs trying to apply element hiding rules to blocked frames
| Reported by: | mapx | Assignee: | trev |
|---|---|---|---|
| Priority: | P1 | Milestone: | Adblock-Plus-2.8-for-Firefox |
| Module: | Adblock-Plus-for-Firefox | Keywords: | |
| Cc: | trev, greiner | Blocked By: | |
| Blocking: | #4211 | Platform: | Firefox |
| Ready: | yes | Confidential: | no |
| Tester: | Ross | Verified working: | yes |
| Review URL(s): | |||
Description (last modified by trev)
Environment
windows 7 / 10
FF 48.0b7
ABP dev build 2.7.3.4194
easylist
How to reproduce
- Go to https://www.rt.com/op-edge/345470-nsa-leaks-snowden-whistleblower/
- Wait a bit and check the CPU usage.
- Close Firefox.
Expected results
CPU usage is low after the page is loaded, Firefox shuts down correctly.
Actual results
High CPU usage, Firefox hangs instead of shutting down.
Background
This seems to be triggered by us blocking the frame. On this particular page the AddThis frame is blocked. Consequently, its contents don't load - the document remains in the "uninitialized" state forever which causes an infinite loop with the changes from #4211.
Change History (14)
comment:1 Changed 3 years ago by mapx
- Description modified (diff)
comment:2 Changed 3 years ago by mapx
- Description modified (diff)
- Summary changed from high CPU usage dev build 2.7.3.4194 to (high CPU usage) + (crash on closing FF) dev build 2.7.3.4194
comment:3 Changed 3 years ago by mapx
- Description modified (diff)
comment:4 Changed 3 years ago by trev
comment:5 Changed 3 years ago by mapx
it's google.com but it does not matter: every site will generate the same behaviour
acceptable ads disabled
comment:6 Changed 3 years ago by mapx
well, not every site ... but if the behaviour starts on google.com for example ... but changing the page the high cpu usage will still remain ON
comment:7 Changed 3 years ago by trev
- Blocking 4211 added
- Description modified (diff)
- Priority changed from Unknown to P1
- Ready set
Never mind, I was able to reproduce this behavior so I see the problem...
comment:8 Changed 3 years ago by trev
- Description modified (diff)
comment:9 Changed 3 years ago by trev
- Summary changed from (high CPU usage) + (crash on closing FF) dev build 2.7.3.4194 to Adblock Plus hangs trying to apply element hiding rules to blocked frames
comment:10 Changed 3 years ago by trev
- Owner set to trev
comment:11 Changed 3 years ago by trev
- Review URL(s) modified (diff)
- Status changed from new to reviewing
comment:12 Changed 3 years ago by abpbot
A commit referencing this issue has landed:
Issue 4251 - Fixed hang trying to apply element hiding rules to blocked frames
comment:13 Changed 3 years ago by trev
- Milestone set to Adblock-Plus-for-Firefox-next
- Resolution set to fixed
- Status changed from reviewing to closed
comment:14 Changed 3 years ago by Ross
- Tester changed from Unknown to Ross
- Verified working set
CPU usage no longer looks excessive and Firefox shuts down correctly.
ABP 2.7.3.4197-beta
Firefox 38 / 45 / 49.0b1 / Windows 7
Which website are we talking about? I guess that it is some Google search page with Acceptable Ads disabled?