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Using Outlook.com on FF, in an email, numbering items is incorrect, but it looks fine on desktop Outlook or with Chrome or Edge browsers

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When using FF and on Outlook.com, if I start numbering a list, FF shows it incorrectly when I have main level and sublevels. Going back to the main level, the next number is skipped, so is then 1 off.

If I look at the same draft email in Outlook on Desktop, or in Edge or Chrome, it does not have the issue. It did not skip a number, but stayed consecutive. FF 1

    a
    b

3 Should be: 1

    a
    b

2 See attachments.

When using FF and on Outlook.com, if I start numbering a list, FF shows it incorrectly when I have main level and sublevels. Going back to the main level, the next number is skipped, so is then 1 off. If I look at the same draft email in Outlook on Desktop, or in Edge or Chrome, it does not have the issue. It did not skip a number, but stayed consecutive. FF 1 a b 3 Should be: 1 a b 2 See attachments.
Attached screenshots

All Replies (4)

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Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

If there is still a problem, Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Did this help?

While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

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I tried all those points and the issue never left. I also tried Gmail on FF - but it worked like you'd expect it to and did not skip numbers. Do you have an outlook account or hotmail where you could try it?

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I use the Thunderbird mail browser. But the times I used Firefox I had no problem.

https://support.mozilla.org/kb/Clear+Recent+History#w_how-do-i-remove-a-single-website-from-my-history

Remove History For One Site

Open the History Manager <Control><Shift> H. In the search bar, enter the name of the site. Right-click on one of the listings and select Forget About This Site. This should remove all information, including any settings.

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Okay, this is a little weird, stick with me.

When you take the preexisting item 2 in your outer list and indent it to create a sub-list, Outlook creates it as a separate element in the outer list, instead of creating it as part of item 1. So then the next item in the outer list is 3, etc. Here's a screenshot showing what the HTML looks like, and where the sub-list really belongs.

One workaround is to use line breaks (instead of paragraph breaks) for the items you want in your sub-list, and then create the sub-list after building your outer list. In this composite screenshot, I've used Shift+Enter to insert line breaks in item 1. Shift+Enter doesn't trigger creating a new list item. Then I've selected those items and instead of using indent, I've clicked the numbered list button. This then creates a properly nested sub-list, as shown by viewing the source HTML.

I don't know whether there is an easier fix if you can't get used to this way of working. Probably a little script could move the indented list where it belongs to fix the outer list numbering, but... yeah... these mail sites are complicated so I haven't looked into that.