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How do I restore my tabs and windows, whether open or closed, when everything else fails?

This is not so much a question, as an answer that some people desperately need. Ever since Version 34, Firefox has done a superb job of restoring the tabs that the user h… (read more)

This is not so much a question, as an answer that some people desperately need.

Ever since Version 34, Firefox has done a superb job of restoring the tabs that the user has created, either on restarting Firefox (if that option is chosen) or on request.

The details of how to restore tabs are covered in Firefox's basic help online, and even how to deal with several crashes in a row (such as in an addon) ruin the normal backup file are also well explained.

However, today I accidentally pressed Alt+F4 twice on my poorly-designed keyboard and closed my main window, with 93 tabs, and another Firefox window as well. I'm not sure this is exactly what happened, but I lost all 93 of my tabs.

I read many of the postings in which people give various suggestions, but none worked. Every time I restored a version of the sessionstore.js file I saw the same lonely empty tab. Restoring prefs.js did nothing, and neither did making changes in the internal configuration constants.

I tried refreshing/resetting Firefox (which preserves bookmarks), but I still couldn't restore the tabs. It was now clear that the problem was in sessionstore.js (and all its backups) for sure.

I'm writing this for people who must restore their windows or tabs, and don't mind getting technical about it. That was my situation.

The solution was to realize that the sessionstore.js file contains JSON code, which is an efficient way to represent integers and strings arranged in a tree structure.

I figured there must be a JSON editor somewhere, and it turns out there is a great one available online, at www.jsoneditoronline.org . It can read a file on your computer, edit it, then save it back on your computer.

As soon as I viewed sessionstore.js in the editor, it was obvious how easy this was going to be. The top level of the tree is understandable. I simply grabbed the data representing the window with 93 tabs, and dragged it from the list of closed Firefox windows to the list of open windows. This automatically moved the history of each tab, and even the strings entered into forms.

After copying sessionstore.js back to the Firefox profile, I started Firefox one more time. The playing of Pandora signalled that my tabs were back and functioning once again.

Now, editing JSON code is not something that everyone is ready for. And your problem might not be reflected in the JSON tree so simply. But, for technical-minded people who don't want to lose their tabs or windows to a mistake or a crash, this technique can be just what's needed when everything else fails.

Asked by David Spector 5 years ago

Answered by FredMcD 5 years ago

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Facebook gets hung up running a script (Windows 8) - how can I get it to stop?

I have three laptops -- one with Windows 7 and two with Windows 8, all using Firefox. Only one of the Windows 8 laptops gets hung up on Facebook every time I open it, sa… (read more)

I have three laptops -- one with Windows 7 and two with Windows 8, all using Firefox. Only one of the Windows 8 laptops gets hung up on Facebook every time I open it, saying that a script is running slow. I tried the YesScript, and then Facebook wouldn't open at all. Any suggestions? Thanks!

Asked by dal_imnoxs 5 years ago

Answered by guigs 5 years ago

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Where the ⌘-H (Command-H) disapeared from the Firefox menu on OSX?

Dear, i can't anymore find the Command-H keystroke to hide Firefox on OSX. In Firefox menu only the quit command left. Is there any way to fix it? Bests, Daniel o … (read more)

Dear, i can't anymore find the Command-H keystroke to hide Firefox on OSX. In Firefox menu only the quit command left. Is there any way to fix it?

Bests, Daniel o

Asked by danielo 5 years ago

Answered by guigs 5 years ago

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Win 8.1 Firefox Shortcut & Taskbar Pin Firefox pin has lost all right click options other than Mozilla Firefox, Unpin this program from taskbar & close window.

Win 8.1 Firefox Shortcut & Taskbar Pin Firefox pin has lost all right click options other than Mozilla Firefox, Unpin this program from taskbar & close window. N… (read more)

Win 8.1 Firefox Shortcut & Taskbar Pin Firefox pin has lost all right click options other than Mozilla Firefox, Unpin this program from taskbar & close window.

New window, private browsing, etc. are gone.

Asked by ff1020 5 years ago

Answered by guigs 5 years ago

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access foxfire from a word doc by clicking the web site listed???

I have a list of sites on a word document that in the past I was able to ctrl/click and the site and it would open on Mozilla Foxfire. how can I restore this feature? … (read more)

I have a list of sites on a word document that in the past I was able to ctrl/click and the site and it would open on Mozilla Foxfire. how can I restore this feature?

Asked by wpdusablon 5 years ago

Answered by guigs 5 years ago

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Disabling hardware acceleration also screws up font anti-aliasing

As in title. First screenshot shows what happens with hardware acceleration enabled, which looks better, second screenshot shows how it looks aliased with acceleration di… (read more)

As in title.

First screenshot shows what happens with hardware acceleration enabled, which looks better, second screenshot shows how it looks aliased with acceleration disabled, with the stroke missing in certain places on very light fonts.

However, when hardware acceleration is enabled, if I open very large images or lots of inline images at a time, the browser window will flash white, all tabs will lose their favicons, and the browser must be restarted. For this reason I'm looking to keep hardware acceleration disabled, but use it (or its method) for rendering fonts only, if such a thing is possible. Alternatively I'd like a fix for hardware acceleration causing such behavior, although that seems more difficult.

Cleartype and font smoothing are both on systemwide. Disabling any of them makes the fonts even worse.

Thanks in advance.

Asked by impy 5 years ago

Answered by impy 5 years ago

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Parts of my Wordpress site have stopped working in FF but are ok in IE. Why?

It has only been in the past 2 days. Before no issues at all.. I have tried clearing - cache, cookies, reinstalled FF. restarted the computer. turned off each add-on in… (read more)

It has only been in the past 2 days. Before no issues at all.. I have tried clearing - cache, cookies, reinstalled FF. restarted the computer. turned off each add-on individually. Started in safe mode.

Oh, and in Fishworld a certain part of it has stopped working too but is still ok in IE.. See the speech bubbles top right of top pics to compare the IE and FF responses..

I am totally out of ideas and any assistance you could send my way would be greatly appreciated.

Cheers, Sharon

Asked by P1nk66 4 years ago

Answered by P1nk66 4 years ago

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How do I arrange it so that I'm not having multiple closures when I only want to close one hotmail message, NOT HOTMAIL?

I'm very tired of trying to close one message, only to have the hotmail account itself slam shut, thus requiring re-starting. Surely it's not supposed to act like this. A… (read more)

I'm very tired of trying to close one message, only to have the hotmail account itself slam shut, thus requiring re-starting. Surely it's not supposed to act like this. A warning message doesn't help with the actual closure. I just know it is going to happen and am annoyed, again.

Note: This is not my default email account, nor do I want it to be. I want to be able to access two different accounts by opening one of two browsers. That part works but this closing thing is infuriating.

Asked by PatriciaEE 4 years ago

Answered by jscher2000 4 years ago

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Do you know that RAM oxidation can cause youtube playback problems? I've just fixed my problems by cleaning my ram sticks!

I was sure that the new firefox 40 was the problem. To make it worse in chrome the videos were not lagging at all, but when I restarted my computer it failed to restart p… (read more)

I was sure that the new firefox 40 was the problem. To make it worse in chrome the videos were not lagging at all, but when I restarted my computer it failed to restart properly. I saw this kind of problems with ram sticks before so I said to give it a try. The sticks were very hot and one of them showed signs of oxidation. I've cleaned them with a eraser and now the computer works great again.

I have 4gb ddr2 800 adata vitesta in 4x1gb sticks.

Asked by brioalex 4 years ago

Answered by FredMcD 4 years ago

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homepage change not staying

OK, never mind. I just found an article that directed me to load the homepage and drag and drop the tab to the home button and it seems to have worked!! Thanks mozilla fo… (read more)

OK, never mind. I just found an article that directed me to load the homepage and drag and drop the tab to the home button and it seems to have worked!! Thanks mozilla for making all possible effort to assist your users=))))))

Asked by ornerybroad 4 years ago

Last reply by guigs 4 years ago

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Firefox Cut-and-Paste not working, found solution in a FEBE AddOn setting

This is not technically a PROBLEM per se , but hopefully more of a possible SOLUTION for a general problem, for some users anyway. I had been fighting a problem with Fir… (read more)

This is not technically a PROBLEM per se , but hopefully more of a possible SOLUTION for a general problem, for some users anyway.

I had been fighting a problem with FireFox updates (I thought) having disabled my Cut-and-Paste ability from practically any webpage to my word processing products (like "Microsoft's Word"). The Cut-and-Paste feature would work if pasted to Window's Notepad, but not to Word. After lots of searching, I found (by accident) a feature in the Environment Backup Extension (FEBE) AddOn feature for Firefox to be causing the problem (for me). Using the "about:config" feature, I searched for "clipboard". I then reset (toggled) the "extensions.febe.copyToClipboard" from "false" to "true". The problem went away. I don't know what issue this may be affecting in the AddOn, but I can do more without FEBE than I can Cut-and-Paste not working.

edited by a moderator to remove the line indentation which messed up page formatting

Asked by dstout49 4 years ago

Answered by FredMcD 4 years ago

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Netflix and Amazon Video are not supported by most recent Firefox update?

Hi and hello! I am on a Macbook Pro laptop from 2015 Whenever I attempt to view something off Netflix I keep getting error code F7121-3078 :( Similarly, when I attempt t… (read more)

Hi and hello!

I am on a Macbook Pro laptop from 2015

Whenever I attempt to view something off Netflix I keep getting error code F7121-3078 :(

Similarly, when I attempt to view Amazon Prime Video it says "We're experiencing a problem playing this video."

I followed instructions, I updated my mac itself to Catalina 10.15.3 and reinstalled Firefox so it should be 100% up to date.

still didn't work.

I read somewhere in this forum from a January post if I open Firefox in 32 bit mode after selecting command + i that it should work but I didn't have that option. I opted for the low resolution setting I saw and not only do the videos still not play but now it looks like I need glasses more than I really do :p I'll be changing that back asap.

What's the vibe check on this? Is there a resolution or a possible ETA of a resolution? Anything?

Any info would be grand!

What the del

Asked by topatricia.george 5 months ago

Last reply by topatricia.george 5 months ago

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Close minimize buttons disappear after viewing YouTube full-screen videos

HEY! Are you going to fix this problem? It's been nearly a month and no solutions!? It's a really big pain and I will just use another browser if you aren't going to fix… (read more)

HEY! Are you going to fix this problem? It's been nearly a month and no solutions!? It's a really big pain and I will just use another browser if you aren't going to fix it. Please send an update SOON.

Asked by bklyner 5 years ago

Answered by jscher2000 5 years ago

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composite reflectivity loop (animated weather radar image) won't work in Firefox.

Just switched from XP to Win 7 Pro. Installed Firefox. When trying to view a composite reflectivity loop (animated weather radar image) on the National Weather Service si… (read more)

Just switched from XP to Win 7 Pro. Installed Firefox. When trying to view a composite reflectivity loop (animated weather radar image) on the National Weather Service site, I get an error message that a plug-in is missing, but no other details.

Thanks,

Ed

Asked by epare 5 years ago

Answered by guigs 5 years ago

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how do I recover sound effects on duolingo? they work on safari, but no longer work on firefox.

I've used duolingo via firefox for months. Today the sound effects stopped working. They work fine on Safari. Firefox is my preferred browser, but I'll switch if I have t… (read more)

I've used duolingo via firefox for months. Today the sound effects stopped working. They work fine on Safari. Firefox is my preferred browser, but I'll switch if I have to. Thanks

Asked by starrboogie 5 years ago

Answered by guigs 5 years ago

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Amazon kindle default device reset after purchase

Just recently I started having a problem (in the last week or so). I set my default Amazon kindle device. I buy a Kindle book. The default kindle device is reset (none… (read more)

Just recently I started having a problem (in the last week or so). I set my default Amazon kindle device. I buy a Kindle book. The default kindle device is reset (none of the devices are the default one). I have cleared cache and history. No affect. Tried this on another PC and got the same error. Tried it in IE and no error - default device remained set. So there is something in maybe the latest version of FF that is causing that default device setting to be lost? (I have not been able to determine exactly where the default Kindle device setting is kept, but it seems to be in the browser since FF does not work and IE does work on my PC).

Asked by JSMH 5 years ago

Answered by guigs 5 years ago