Open Bug 1875325 Opened 1 month ago Updated 1 month ago

Large JPEG image attachments in received E-mail are not always resized to the window width.


(Thunderbird :: Message Reader UI, defect)

Thunderbird 115


(Not tracked)


(Reporter: anacond71, Unassigned)



(1 file)

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0

Steps to reproduce:

  1. I sent an E-mail to myself containing three JPEGs of 4-5 MBs each, as attachments (not inline).
  2. I opened the E-Mail with the option "View" --> "Disable Attachments inline" enabled.

Actual results:

Only the first JPEG image was resized to the window width. The other two were displayed at 100% size (at about 72 dpi, so very large). The magnifying glass cursor only appeared on the first image. When I moved the mouse over the second or third image, the cursor didn't change to a magnifying glass.

Expected results:

All three images should have been resized to the window width.

Component: Message Reader UI → Untriaged
OS: Unspecified → macOS
Hardware: Unspecified → ARM64
Severity: -- → S3
Component: Untriaged → Message Reader UI
Ever confirmed: true
OS: macOS → All
Hardware: ARM64 → All
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