Closed Bug 1397495 Opened 3 years ago Closed 3 years ago

Mark Selected Links As Visited 0.3 can hang the browser

Categories

(Toolkit :: Places, defect)

defect
Not set
normal

Tracking

()

RESOLVED WORKSFORME
Tracking Status
firefox57 --- affected

People

(Reporter: asa, Unassigned)

References

()

Details

The extension Mark Selected Links As Visited 0.3 available at https://addons.mozilla.org/en-US/firefox/addon/mark-selected-links-as-visited hangs the browser about half the time I use it.

Steps to reproduce:
1. install extension
2. visit https://www.reddit.com/
3. click the button to mark all links on the page as visited

Results: 
About half the time the whole browser hangs. Some of the time I can still switch tabs but none of them will load a web page. 

Expected results: links marked visited and no hanging.
This works fine for me, but of the main thread execution time that it causes, nearly all of it is in Places.
Component: WebExtensions: Untriaged → Places
This needs a stack or a https://perf-html.io/ profile.

Off-hand doesn't look like this should cause much main-htread stuff, it's just adding a visit. I wonder if something else is listening to history changes and slowing down everything, maybe another add-on or a test pilot.
I've been unable to reproduce this recently and it was intermittent before and now it seems gone.
Status: NEW → RESOLVED
Closed: 3 years ago
Resolution: --- → WORKSFORME
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