+++ This bug was initially created as a clone of Bug #1479196 +++ User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0 Build ID: 20180727231224 Steps to reproduce: 1. create new profile. 2. Download the attachment to your desktop 3. Drag-and-drop the file into the browser OR menu bar->file->open file and then browse to the downloaded attachment Actual results: Browser memory booms to 5GB+.The tab is unresponsive. The whole computer may shut down. Expected results: not so I dont know which component to put this into. Putting it into Layout:Text for the time being.
This bug is for the non-WR case
Severity: critical → normal
Crash Signature: [@ mozilla::ipc::ProcessLink::SendMessageW | IPC_Message_Name=PWebRenderBridge::Msg_SetDisplayList ]
Summary: Browser OOM's and hangs with a html file full of emojis, if you drag-and-drop the file from desktop to browser (wrong charset defined) → Browser OOM's and hangs with a html file full of emojis, if you drag-and-drop the file from desktop to browser (wrong charset defined). Non-WR
here is a profile: https://perfht.ml/2AsXvlu
Component: Layout: Text → Graphics: Text
Trying to draw so many missing-glyph hexboxes (as a result of the incorrect encoding) brings the browser to its knees. See also bug 1479213 comment 2; this is just a more extreme example.
(In reply to Jonathan Kew (:jfkthame) from comment #3) > Trying to draw so many missing-glyph hexboxes (as a result of the incorrect > encoding) brings the browser to its knees. See also bug 1479213 comment 2; > this is just a more extreme example. Feel free to mark as a dupe, if you think bug 1479213 is enough to track this issue.
Status: UNCONFIRMED → RESOLVED
Has STR: --- → yes
Last Resolved: 10 months ago
Priority: -- → P3
Resolution: --- → DUPLICATE
Duplicate of bug: 1479213
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