This sounds a lot like bug 1980356 (issue with printing PDFs, starting in 140, with `print.prefer_system_dialog` being relevant). However, bug 1980356 specifically reproduces when print.prefer_system_dialog is set to `true`, whereas it looks like this bug here reproduces when that pref is set to `false`. One other diagnostic that would be useful to try... Could you go to about:config and set the preference `print_printer` to the string `Mozilla Save to PDF` and see if that helps at all? (for the next print operation). (That pref gets overwritten on each print operation -- it just stores the most-recently-used printer, which will then come up as the default for your next print operation. If setting it to the save-to-PDF printer helps, then that lets us know that the the hang might be specific to Firefox waiting on printer information from whatever other printer would get used as your default, which is handy to know.)
Bug 1978214 Comment 22 Edit History
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This sounds a lot like bug 1980356 (issue with printing PDFs, starting in 140, with `print.prefer_system_dialog` being relevant). However, bug 1980356 specifically reproduces when print.prefer_system_dialog is set to `true`, whereas it looks like this bug here reproduces when that pref is set to `false`. One other diagnostic that would be useful to try... Could you go to about:config and set the preference `print_printer` to the string... ``` Mozilla Save to PDF ``` ...and see if that helps at all? (for the next print operation). (That pref gets overwritten on each print operation -- it just stores the most-recently-used printer, which will then come up as the default for your next print operation. If setting it to the save-to-PDF printer helps, then that lets us know that the the hang might be specific to Firefox waiting on printer information from whatever other printer would get used as your default, which is handy to know.)
This sounds a lot like bug 1980356 (issue with printing PDFs, starting in 140, with `print.prefer_system_dialog` being relevant). However, bug 1980356 specifically reproduces when print.prefer_system_dialog is set to `true`, whereas it looks like this bug here reproduces when that pref is set to `false`. One other diagnostic that would be useful to try... Could you go to about:config and set the preference `print_printer` to the string... ``` Mozilla Save to PDF ``` ...and see if that helps at all? (for the next print operation) (That pref gets overwritten on each print operation -- it just stores the most-recently-used printer, which will then come up as the default for your next print operation. If setting it to the save-to-PDF printer helps, then that lets us know that the the hang might be specific to Firefox waiting on printer information from whatever other printer would get used as your default, which is handy to know.)