1627492 - Slow File Upload with Firefox

Status: RESOLVED DUPLICATE of bug 1627522

(Firefox :: General, defect)

Description

[Kev]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.163 Safari/537.36

Steps to reproduce:

1. Go to YouTube Creator.
2. Upload button.
3. Drag a 5-10GB video file to upload box.
4. Speed is half of other browsers

Actual results:

The upload speed is 200Mbps compare to Chrome or Edge runs at 500Mbps (current max speed).

Expected results:

Should be same at full speed upload.

Comment 1

[Kev]

I am in progress zip the big logs generated by Firefox.

Upon more discussion over Reddit: someone mentioned QUIC which might explain why chromium able to stream data with less overhead.
https://bugzilla.mozilla.org/show_bug.cgi?id=1158011

Reddit: https://www.reddit.com/r/firefox/comments/fv5j69/youtube_upload_speed_200mbps_in_firefox_chrome_or/

Comment 2

[Kev]

Attachment: log.txt-main.16192.zip.001

Batch ZIP file .001 to .006

Comment 3

[Kev]

Attachment: log.txt-main.16192.zip.002

Comment 4

[Kev]

Attachment: log.txt-main.16192.zip.003

Comment 5

[Kev]

Attachment: log.txt-main.16192.zip.004

Comment 6

[Kev]

Attachment: log.txt-main.16192.zip.005

Comment 7

[Kev]

Attachment: log.txt-main.16192.zip.006

Comment 8

[Kev]

Attachment: Annotation 2020-04-05 110922.png

This is my current internet line speed test. 500/500Mbps

Comment 9

[Kev]

Attachment: Annotation 2020-04-05 111256.png

Chrome latest version (with QUIC?) 400Mbps average and probably due to the today traffic.

Comment 10

[Kev]

Attachment: Annotation 2020-04-05 111358.png

Firefox, latest version max around 200-240Mbps.

Comment 12

[:Gijs (he/him)]

Junior, are the log files here helpful to figure out what's going on in bug 1627522 ?

Comment 13

[Junior [inactive]]

The log is provided in bug 1627522 as well. I'd like to move the discussion to the public bug.
This is youtube upload, IMO it's not privacy-sensitive?

Comment 14

[:Gijs (he/him)]

Makes sense. Reporter, are we missing some reason you filed this report as security-sensitive?

Comment 15

[Kev]

I closed this report, mistakenly opened as privacy sensitive.