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Email embeded urls do not open in Firefox but do open in chrome

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Suddenly Thunderbird (current on Win 10) no longer opens URLs sent me. Same email at cableone's site does open and the URL opens when I access my Thunderbird account using Chrome. thanks

Suddenly Thunderbird (current on Win 10) no longer opens URLs sent me. Same email at cableone's site does open and the URL opens when I access my Thunderbird account using Chrome. thanks

Chosen solution

I'm glad to hear that worked!

Just in case it comes back:

There is a bug in Firefox 67 related to clearing data at shutdown. If you use BOTH of the following features, some of the cleaning may carry over to the beginning of your next session, and that seems to preempt showing a custom home page or external link at startup. A fix should be in Firefox 68, and maybe in an interim update to Firefox 67.

Here is the problem combination:

(1) "Delete cookies and site data when Firefox is closed"

  • set in Preferences > Privacy & Security > Cookies section

  • about:config => network.cookie.lifetimePolicy => 2 (modified)

(2) "Clear history when Firefox closes"

  • set in Preferences > Privacy & Security > History section, with "Firefox will: Use custom settings for history" selected to show detailed options

  • about config => privacy.sanitize.sanitizeOnShutdown => true (modified)

If you set either of those red-boxed preference back to its default value (unchecked), the problem should not occur. If you do not want to change settings, you can keep Firefox running, since the problem doesn't occur when adding a new tab once the browser is started.

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Additional System Details

Application

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

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Helpful Reply

Mysteriously a CPU reboot fixed the issue! Should have done that when I was determining its problems.

Mysteriously a CPU reboot fixed the issue! Should have done that when I was determining its problems.
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jscher2000
  • Top 10 Contributor
8516 solutions 69581 answers

Chosen Solution

I'm glad to hear that worked!

Just in case it comes back:

There is a bug in Firefox 67 related to clearing data at shutdown. If you use BOTH of the following features, some of the cleaning may carry over to the beginning of your next session, and that seems to preempt showing a custom home page or external link at startup. A fix should be in Firefox 68, and maybe in an interim update to Firefox 67.

Here is the problem combination:

(1) "Delete cookies and site data when Firefox is closed"

  • set in Preferences > Privacy & Security > Cookies section

  • about:config => network.cookie.lifetimePolicy => 2 (modified)

(2) "Clear history when Firefox closes"

  • set in Preferences > Privacy & Security > History section, with "Firefox will: Use custom settings for history" selected to show detailed options

  • about config => privacy.sanitize.sanitizeOnShutdown => true (modified)

If you set either of those red-boxed preference back to its default value (unchecked), the problem should not occur. If you do not want to change settings, you can keep Firefox running, since the problem doesn't occur when adding a new tab once the browser is started.

I'm glad to hear that worked! ''Just in case it comes back:'' There is a bug in Firefox 67 related to clearing data at shutdown. If you use BOTH of the following features, some of the cleaning may carry over to the beginning of your next session, and that seems to preempt showing a custom home page or external link at startup. A fix should be in Firefox 68, and maybe in an interim update to Firefox 67. Here is the problem combination: (1) "Delete cookies and site data when Firefox is closed" * set in Preferences > Privacy & Security > Cookies section<br><br><img src="https://prod-cdn.sumo.mozilla.net/uploads/images/2019-05-28-15-03-50-21661b.png" width="400"> * '''about:config''' => network.cookie.lifetimePolicy => 2 (modified) (2) "Clear history when Firefox closes" * set in Preferences > Privacy & Security > History section, with "Firefox will: Use custom settings for history" selected to show detailed options<br><br><img src="https://prod-cdn.sumo.mozilla.net/uploads/images/2019-05-28-15-03-56-8b9d89.png" width="400"> * '''about config''' => privacy.sanitize.sanitizeOnShutdown => true (modified) If you set ''either'' of those red-boxed preference back to its default value (unchecked), the problem should not occur. If you do not want to change settings, you can keep Firefox running, since the problem doesn't occur when adding a new tab once the browser is started.
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