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Drop-down lists are double spaced in FF 52.2. They were fine in V45.9. Can this be fixed? I can send a screen capture if thay will help.

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Has anyone else run into a problem with drop-downs after moving to ESR 52.2? We had no problems on the previous version 45.9. After the update to 52.2 the lists in our drop-downs are now double spaced. The same drop-down is also fine in Internet Explorer and Chrome. We believe this is also causing issues when doing Print to PDF on some other forms.

Has anyone else run into a problem with drop-downs after moving to ESR 52.2? We had no problems on the previous version 45.9. After the update to 52.2 the lists in our drop-downs are now double spaced. The same drop-down is also fine in Internet Explorer and Chrome. We believe this is also causing issues when doing Print to PDF on some other forms.
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Izabrano rješenje

Try to set dom.forms.select.customstyling to false.

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Try updating browser to latest release Ver 54 From Menu Bar : Help then About or which ever way you do so. If problem persists please come back and update. If solves your problem please come back and close this as solved.

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Our department is running on the ESR update channel. The "About Mozilla Firefox" form says Firefox is up to date. I need a fix that works with the latest version of the ESR.

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This issue could be theme related, either a Firefox theme or a Windows theme.

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window

Create a new profile to test if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

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The steps above did not help. If I do "Refresh Firefox" the 1st time I open FF the problems go away (the drop down lists are single spaced and I can successfully do Print to PDF). But, once I close and reopen FF the problems return. The problem with Print to PDF is that there is no text in PDF created. I think it may be a font issue but I don't know for sure.

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We found that for some reason going into about:config and changing the value of this preference name to false fixes both issues. Any ideas? Do we need to tell all our users to go into about:config to make this change and hope they don't mess anything up?

browser.tabs.remote.autostart.2;false

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zajlzoo said

We found that for some reason going into about:config and changing the value of this preference name to false fixes both issues. Any ideas? Do we need to tell all our users to go into about:config to make this change and hope they don't mess anything up?

browser.tabs.remote.autostart.2;false

Yes. Websites often specify style rules for the <option> elements of <select> controls. In Firefox 49-53, with multiprocess enabled, most of those style rules are ignored. Old thread from the Firefox 49 days: dropdown.

There is work in process to fix that, and some of the fix may have landed in Firefox 54, but users are still mentioning issues with font sizes/weights in Firefox 54. Hopefully in Firefox 55?

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Odabrano rješenje

Try to set dom.forms.select.customstyling to false.