How do I disable or hide this notification? "One or more installed add-ons cannot be verified and have been disabled."
OS Windows 7 Pro x64 w/SP1, FF v. 48.0.2. The problem is Mozilla Firefox Extension 1.0 (ID ppcdwb@ppcdwb.ext). It appears to be a globally installed extension. It's in Troubleshooting Information > Extensions but not in my profile folder or C:\Program Files (x86)\Mozilla Firefox\browser\extensions. There is one .xpi there I have deleted that seems to fix it but it won't stay deleted. I restart FF and it's back. This one: {972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi.
I could hide it before by disabling signature enforcement by setting xpinstall.signatures.required to false but that doesn't work anymore. I really want to be rid of the extension and failing that to be rid of this annoying notification. Any help would be greatly appreciated.
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hmm the {972ce4c6-7e08-4474-a285-3208198ce6fd} is the ID of default Theme in Firefox and also in Thunderbird ?
由James于修改
Firefox doesn't display a Remove button for an extension if it was installed into a "shared" location -- and this can include a program's folders that Firefox learns of through a key in the Windows registry.
If there is no entry in the Windows Control Panel, Uninstall a Program, which lets you remove it -- or there isn't enough information to accurately ID it, there is a somewhat arduous way to discover the location of an extension on disk so you can remove it.
Open your current Firefox settings (AKA Firefox profile) folder using either
- "3-bar" menu button > "?" button > Troubleshooting Information
- (menu bar) Help > Troubleshooting Information
- type or paste about:support in the address bar and press Enter
In the first table on the page, click the "Show Folder" button. This should launch a new window listing your settings files.
Scroll down and find extensions.json and make a copy somewhere convenient, such as your Documents folder. You can close out of the Windows Explorer window after that.
Back in Firefox, open that copy of extensions.json in Firefox's "Scratchpad" tool as follows. Launch the Scratchpad from the Developer menu, either:
- "3-bar" menu button > Developer > Scratchpad
- (menu bar) Tools > Web Developer > Scratchpad
Use the Open button on the Scratchpad's toolbar to open the backup copy of extensions.json and then click the Pretty Print button on the toolbar to re-layout the data in a more readable format.
Then use Find (Ctrl+f) to search for some part of the name of the unwanted extension, and you should see various information about it. The descriptor gives its location on disk. (The \ in Windows folder paths is doubled in this file due to the way it is processed. When exploring your disk, read \\ as \.)
Can you track it down?
Note: you don't need to save the changes to the file when you exit unless you want to keep the "pretty" version for future reference.