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Can't open links in Firefox by clicking URL in Thunderbird
This has started happening since the last Firefox upgrade (to 14.0.1). It affects two machines - one running Windows 7, the other XP. The symptoms are identical. Firefox… (read more)
This has started happening since the last Firefox upgrade (to 14.0.1). It affects two machines - one running Windows 7, the other XP. The symptoms are identical.
Firefox is the default browser on both machines. I'm using only a default profile on each machine. I've checked that there are no stray "no-remote" switches in the command line or environment variables and I've tried deleting "parent.lock". The fact that it has happened to two separate installations, as a result of the upgrade, and the fact that all other functions of Firefox work as expected, makes me doubt that it's a profile corruption. I have also tried opening Firefox in Safe Mode but the behaviour is the same.
Here's what happened/happens:
Previously, if I had opened Firefox in the normal way from the start menu and then clicked on a link in an email in Thunderbird, the link would open in a new tab in the running copy of Firefox. I could do this with multiple links, each opening a new tab.
Now, if I do this I get the "Firefox is already running" error box.
If I close Firefox the click on a link in an email in Thunderbird, it will start Firefox as expected, and open the link. But if I then click on a second link, I get the error message.
If I click on URLs in other applications (for instance Pidgin instant messenger), the links open in new tabs in the running Firefox in the usual way, so the problem seems to be specific to links opened in Thunderbird.
As an experiment, I rolled my FF installation back to 13.0.1 on the XP machines. Everything then worked as before, and as expected, so this is clearly to do with the upgrade.