Browser kept crashing when several tabs were open, particularly if there were two or more PDF documents displayed in respective tabs. System memory is fine.

RESOLVED WORKSFORME
(NeedInfo from)

Status

()

Firefox
Untriaged
RESOLVED WORKSFORME
7 months ago
7 months ago

People

(Reporter: Ryan, Unassigned, NeedInfo)

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52 Branch
Points:
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Firefox Tracking Flags

(Not tracked)

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(1 attachment)

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Details
(Reporter)

Description

7 months ago
Created attachment 8859678 [details]
raw dump.txt

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
Build ID: 20170323105023

Steps to reproduce:

1. I was browsing the internet, searching for PDFs on programming via Google, GitHub etc. 
2. I had several webpages open and I started reading PDF documents downloaded or accessed via the web (programming texts books searched for via Google). 
3. The PDF documents were generally 500+ pages; and
4. I think I had at most 3-4 tabs with PDFs open in them, the rest were normal webpages.


Actual results:

1. When I switched over from one PDF to another, or to a site, the response time started to lag.
2. After a couple of seconds the system just came to a halt..
3. I was able to move my cursor but there was no response from any action.
4. I tried ctrl+alt+del; ctrl+shift+esc; alt+f4; clicking various tabs, start button etc, nothing responded.



Expected results:

1. The system should have informed me of the increased memory allocation reaching critical;
2. then it should have offered me the choice of closing unused/least used tabs; high memory items; or
3. the option to cache the tabs, or bookmark them for easier recollection; and/or
4. the option to close the PDF tabs and initiate a download instead to a nominated folder.
This is not a security issue.
Group: firefox-core-security
User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0

I have tested your issue on latest Firefox release v53.0 and latest Nightly (Build ID: 20170424030211) and could not reproduce it. I've opened 7 tabs with normal webpages and 5 tabs with PDF docs from 300 pages to 2050 pages. From the User Agent I can see that you are using a 32-bit Firefox version on a 64-bit system. Can you please try with the 64-bit Firefox version? Can you provide the links to the documents that created this issue?

Is this still reproducible on your end ? If yes, can you please retest this using latest FF release and latest Nightly build (https://nightly.mozilla.org/) and report back the results ? When doing this, please use a new clean Firefox profile, maybe even safe mode, to eliminate custom settings as a possible cause (https://goo.gl/AR5o9d).
Flags: needinfo?(kaiasrex)
Considering the fact that I cannot reproduce this and the fact that the reporter did not answered to my request until now, I will mark this as Resolved-Worksforme.

If anyone can still reproduce it on latest versions, feel free to reopen the issue and provide more information.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 7 months ago
Resolution: --- → WORKSFORME
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