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After Outlook (O365) update when clicking link in email, get Firefox is already running but is not responding

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O365 updated yesterday and since then if I click a link in an email I get this error. If I change my browser default to IE or Chrome links work without issue. The error happens whether FF is open of closed. I haven't noticed any other issues with FF.

FF - 67.0 (64-bit) Windows 10 Pro Office 365, 1904 build 11601.20230

O365 updated yesterday and since then if I click a link in an email I get this error. If I change my browser default to IE or Chrome links work without issue. The error happens whether FF is open of closed. I haven't noticed any other issues with FF. FF - 67.0 (64-bit) Windows 10 Pro Office 365, 1904 build 11601.20230
Attached screenshots

Modified by larrycore

Chosen solution

Have you tried uninstalled FireFox completely and then trying?

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0

More Information

Jeremy Sanders
  • Top 25 Contributor
12 solutions 142 answers

I would go to your control panel -> right click O365 -> Select repair -> quick repair.

Let me know if that works for you.

I would go to your control panel -> right click O365 -> Select repair -> quick repair. Let me know if that works for you.
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Question owner

I did a full uninstall of O365, rebooted, then installed again. No change.

I did a full uninstall of O365, rebooted, then installed again. No change.
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Jeremy Sanders
  • Top 25 Contributor
12 solutions 142 answers

Chosen Solution

Have you tried uninstalled FireFox completely and then trying?

Have you tried uninstalled FireFox completely and then trying?
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Question owner

With everything else in FF working I didn't think that would be needed, but it did the trick. Thanks.

With everything else in FF working I didn't think that would be needed, but it did the trick. Thanks.
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cor-el
  • Top 10 Contributor
  • Moderator
17412 solutions 157274 answers

Does it make a difference if you modify this pref on the about:config page>

  • browser.link.open_newwindow.override.external = 3
  • 1: current tab; 2:new window; 3:new tab;

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

Does it make a difference if you modify this pref on the <b>about:config</b> page> *browser.link.open_newwindow.override.external = 3 *1: current tab; 2:new window; 3:new tab; You can open the <b>about:config</b> page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue. *http://kb.mozillazine.org/about:config
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Question owner

cor-el said

Does it make a difference if you modify this pref on the about:config page>
  • browser.link.open_newwindow.override.external = 3
  • 1: current tab; 2:new window; 3:new tab;
You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

Already did a reinstall of FF which solved it.

''cor-el [[#answer-1224375|said]]'' <blockquote> Does it make a difference if you modify this pref on the <b>about:config</b> page> *browser.link.open_newwindow.override.external = 3 *1: current tab; 2:new window; 3:new tab; You can open the <b>about:config</b> page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue. *http://kb.mozillazine.org/about:config </blockquote> Already did a reinstall of FF which solved it.
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