Firefox reset - lost previous session and plugins
I was trying to attach a jpg into an email using Gmail on Firefox. One of my attachments would not load, no matter how I tried. I then read there is a PROBLEM with Gmail and Firefox as regards attachments. Is that the case? The attachment sent fine in Chrome.
So I followed instructions and did a "refresh" of Firefox. Now I lost my previous session restore, and a plug-in/extension that I was using and liked.
It put a list view to the left of the window that showed me all open tabs, and on which each listing could be clicked to go instantly to that tab. I can't remember what the name of that extension is, and, again, it has disappeared.
I don't want to switch back to Chrome because it's a memory hog, but this behavior from Firefox is frustrating. Is there anyone who can help?
Thanks, Gary Stockdale
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Gary Stockdale said
I dragged the sessionstore - dot - jsonlz4 into the tool you sent, and it opened a whole lot of characters. I don't seem to see a "go" button or anything to restore from that file. Is this a matter of picking through the data to find URLs, one-by-one, or is it a tool to help restore?
Hi Gary, if you click the Scrounge URLs button, in about 5-15 seconds it should list all the URLs of the tabs and windows in the file. The Save HTML button lets you save that as a clickable list of links. I suggest saving it in case the other approaches become too frustrating, or if you might need it for future reference.
What a web page cannot do is plant the file in your current profile folder and persuade Firefox to use it. As cor-el described, there are many other steps for that.
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Extensions aren't included in a reset and you would have to reinstall extensions in the new profile folder. You can possibly check the "Old Firefox Data" folder on the desktop and check the extensions folder for the name of the extension.
Open tabs from the active session would normally be transferred to the new profile. If this didn't happen then you can check the sessionstore.jsonlz4 file and files in the sessionstore-backups folder in the "Old Firefox Data" folder on the desktop to see if you can locate the tabs from that session.
You can look at this tool to inspect a compressed sessionstore file.
Thanks Cor-El, one of the things I really need is the name of that extension. Does anyone know the name of the extension that puts a list of all open tabs on the left side of the window?
And, by the way, were your instructions for a Mac or a PC? I am on a Mac.
I dragged the sessionstore - dot - jsonlz4 into the tool you sent, and it opened a whole lot of characters. I don't seem to see a "go" button or anything to restore from that file. Is this a matter of picking through the data to find URLs, one-by-one, or is it a tool to help restore?
Thanks, Gary
You can open the extensions.json file located in the "Old Firefox Data" folder on the desktop to find a list of all installed extensions including the sourceURI to download the XPI file.
I merely mentioned the tool because it allows to check what file you need to copy to the current profile folder to regain access to that session.
You can copy a sessionstore file to the main profile with Firefox closed and if necessary rename the file to sessionstore.jsonlz4 to replace the current file (make sure to backup the current sessionstore.jsonlz4).
You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.
- Help -> Troubleshooting Information -> Profile Folder/Directory:
Windows: Open Folder; Linux: Open Directory; Mac: Show in Finder - https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data
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Gary Stockdale said
I dragged the sessionstore - dot - jsonlz4 into the tool you sent, and it opened a whole lot of characters. I don't seem to see a "go" button or anything to restore from that file. Is this a matter of picking through the data to find URLs, one-by-one, or is it a tool to help restore?
Hi Gary, if you click the Scrounge URLs button, in about 5-15 seconds it should list all the URLs of the tabs and windows in the file. The Save HTML button lets you save that as a clickable list of links. I suggest saving it in case the other approaches become too frustrating, or if you might need it for future reference.
What a web page cannot do is plant the file in your current profile folder and persuade Firefox to use it. As cor-el described, there are many other steps for that.
Gary Stockdale said
Thanks Cor-El, one of the things I really need is the name of that extension. Does anyone know the name of the extension that puts a list of all open tabs on the left side of the window?
The most classic one is Tree Style Tab, but I think there's a newer one with "side" in its name??
Hi Jscher,
Yes, I looked at the pic of Tree Style Tab, but it looked different than the one I was using.
And THANK YOU so much for the instructions. That worked like a charm, retrieving all the URLs.
If anyone knows the extension we're referring to, that would be great.
Best regards, Gary
OK, my bad, Tree Style Tab WAS the right one, and it's back. It looked a little different in the illustration than it actually does on my Mac.
So grateful for all your help.
Gary Stockdale
Hi Gary, you could try the steps in cor-el's reply about the extensions-json file. When you open it in a tab, after a few moments, Firefox should display a structured view of the contents so it's not as daunting as you might imagine. Probably the top part of the list will be built-in things, with your own extensions toward the end, but that's just a guess.
cor-el said
You can open the extensions.json file located in the "Old Firefox Data" folder on the desktop to find a list of all installed extensions including the sourceURI to download the XPI file.