Affected versions

• Firefox 86.0a1 (BuildId:20210106155127)
• Firefox 85.0b5 (BuildId:20210105185604)
• Firefox 84.0.2 (BuildId:20210105180113)

Affected platforms

• Windows 10 64bit
• Ubuntu 20.04 64bit

Unaffected platforms

• macOS 10.14

Steps to reproduce

1. Launch Firefox.
2. Open a random webpage
3. Select a random portion of text and hit Ctrl + P ( or open the context menu and select the “Print Selection” option)
4. Check the “Print Selection only checkbox”
5. Click the “Print using the system dialog” option.

Expected result

• The “Selection” radio button from the Page Range section is selected.

Actual result

• The “All” radio button from the Page Range section is selected.

Regression Range

• This doesn’t seem to be a regression.

Notes

• For further information regarding this issue please observe the attached screencasts.
• This issue is reproducible way back to Fx 83 for the old UI ( Using the Print Selection option from the context menu).

Another STR:

1. Load https://en.wikipedia.org/wiki/France
2. select first paragraph
   "
   For other uses, see France (disambiguation).
   "La France" redirects here. For other uses, see Lafrance.
   "French Republic" redirects here. For previous republics, see French Republics.
   "
3. Right-click / Print selection

Actual result: Print preview is blank.

Expected result: Print preview contains the previously selected paragraph.

Found in: Beta v103.0b9 on Mac OS 11, Windows 7 and 10.