270964 - Download manager shows incorrect percentage for multiple files

Status: VERIFIED DUPLICATE of bug 239006

(Toolkit :: Downloads API, defect)

Description

[kosta_kp]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

If you are downloading more than one file, Download Manager just divides the
total number of percents in the downloads by the number of downloads, instead of
the percentage of the total file size downloaded.
For example, 90% of a 10 MB file and 15% of a 1 MB file shows "53% (52.5%
rounded) of 2 files" (implying 5.775/11MB downloaded) instead of "83% of 2
files" (the actual 9.15/11MB downloaded.
It should equal (SizeDone1 + SizeDone2)/(SizeTotal1 + Size Total2) * 100%,
NOT
(SizeDone1/SizeTotal1 + SizeDone2/SizeTotal2)/2 * 100%

Reproducible: Always
Steps to Reproduce:
1. Download more than one file (of diffent filesizes) simultaneously.

Actual Results:  
See above.

Expected Results:  
See above.

Comment 1

[Uri Bernstein]

*** This bug has been marked as a duplicate of 239006 ***

Comment 2

[Marek Stępień [:marcoos, inactive]]

v.