Firefox Support Forum

Hi there,

I just got some message saying that my Firefox version needed to be updated and by hastily taping on the ok button I did it without noticing that it had done it to a newer version no longer supported by my Mac OS.

I wanted to go back to the most recent version still supported by El Capitan 10.11.6, so I installed again the 78.10.0ESR and now all my browsing history from many years back is gone.

Could you please help me getting my history back?

Going through internet through several hours didn't bring any good solution to my problem.

Thanks on advance.

I refreshed Firefox, now my logins are all gone and when I input them to sites, click on Save, nothing will save. Also my Facebook page is not missing half the stuff on the page.

There are 2 processes involved in Firefox Sync, and 0 differentiation between them in the language used to describe what Firefox Sync does in any of the documentation, this makes nearly every discussion on the topic highly confusing to borderline misleading.

When you press Sync, you are pushing settings to Firefox servers. When you sign in to Sync, you are pulling settings from Firefox servers.

Both of these steps are referred to interchangeably as "syncing" and there is next to no documentation of what causes each to occur nor what they actually do.

Why is this dangerous you might ask? Well, let's say I buy a new computer, I want to set it up the same way I use all my devices, so I sign in to sync to synchronize my settings, makes perfect sense. Nothing tells me anything is happening when I sign in, so I click the sync button because I want to synchronize my settings with my other devices. Big mistake. I've just overwritten the server-side sync profile with a default Firefox profile. You know how you fix that? You sign in and press the sync button to overwrite the sync profile again. But you know what happens when you sign in? You become synced with the now blank sync profile and lose all the settings that you want to be pushing to the sync profile. This just happened to me. Thankfully I was only choosing to sync add-ons and options AT THE TIME and I have backups that are about 6 months old and I rarely change settings, but some things like my homepage URLs are something that I do change fairly often, and I'm sure some additional sites were whitelisted since by default I just reject all cookies. I also thankfully use policies.json to block updates so I didn't immediately get assaulted by that too.

SO! I HIGHLY suggest that when merely signing in to Sync, the default should be for syncing to be off to start off with, so that you can choose what to "sync" BEFORE it occurs. However, because of the language, the question arises, what am I choosing to sync for? Am I choosing what to PULL from servers? Or am I choosing what gets PUSHED to the servers? When syncing is turned on, does that mean I an pulling the settings that I have chosen? Or am I am pulling ALL settings while only pushing what I have chosen IF I click the Sync button? Or do I push EVERYTHING?

It's incredibly unclear how the Sync feature works and both of the "main" articles on it are completely useless for understanding it because the term "sync" is used interchangeably for pushing or pulling settings.

https://support.mozilla.org/en-US/kb/how-do-i-choose-what-information-sync-firefox https://support.mozilla.org/en-US/kb/sync-custom-preferences

What are the correct steps to rectify this horrid situation? Sign-in, set-up sync, choose "Options" and "Add-Ons" again, THEN copy over the backup settings, THEN Sync them to the "cloud"? If I have 2 different devices setup with sync, and 1 chooses to sync options and the other chooses to sync bookmarks, then I click sync on BOTH devices repeatedly, what occurs?

Hi there, Please see attached image of screenshots of searches on Firefox and Chrome. The Firefox search images are incomplete whereas the Chrome images are complete. This has only started happening on Firefox recently. Can you please help me resolve this issue. I have cleared the cache & cookies, restarted my macbook etc but nothing has worked. Thanks in advance, Paul

Hi Guys,

I am using an older OSx version which I am happily using Firefox 78.15 with no issues. Last week I easily attended meetings via Google Meets with no problems to date, until today.

All of a sudden it states that my browser doesnt support it. I have tried all workaround, uninstalled add-ons etc.

Was there a sudden change? This will affact my day to day work if meets no longer works.

Any information please help

hi, i see this often: "Website will not allow Firefox to display the page if another site has embedded it".

{see attached}
but even when i click on open site in new window, the new window wont load. just a blank with spinning circle forever {see attached}

this usually happens when i click on a trusted site's "help" tab or button. this is a new problem that just started a week or so ago. {eg, gmail and youtube} please, how can i set it so i can see these view?

I am no longer able to log in to eBay using Firefox. I am using Firefox 78.15esu bc I have an older Mac that will only support up to Mac OSX 10.11. I was able to use eBay up until this morning when the site asked me to log in again... and verify that I am indeed a human through the hCaptcha checker. The checker cycles between identifying horses and lions... and every time, I seem to pass but then comes the message "Failed to pass Captcha, Please try again." I can access eBay using Safari and Chrome. Right before the failure today, the rendering of the eBay pages was odd... needed 3x the screen width to see the whole page. eBay says that the problem is on the Mozilla side of this issue... mostly because I can use a different browser without problem. I think I am in agreement with them. I don't really want to use a different browser but I will bc I like eBay, too. Please advise.

Hi All,

I'm using an iMac with OS X El Capitan 10.11.6. I am using Firefox 78.15. When I click on links, nothing happens. I have to right click and select "open link in new tab." I suspected it might be an out-of-date Add-On. So, I disabled all add-ons and restarted Firefox. It had no effect.

This problem is getting annoying Any assistance is greatly appreciated.

Suddenly when I try to go on Youtube, I get messages that I'm blocking ads. I'm on a Mac-mini using X El Capitan V10.11.6, which is the highest I can upgrade to. I'm using Firefox Browser 78.15 (64-bit) and info shows it's up to date. My old Safari browser still will work with Youtube, but Foxfire is my go-to browser.

Went to a clothing account on line, my password came up as a run-on line of letters, that I didn't recognize. Went to Firefox Preferences, and the same run-on line of letters was there, but I couldn't erase it. [Highlighted long section pressed "delete", "command delete", "control delete".. nothing.] I did a Refresh Firefox, and noticed in the troubleshooting info, in "CMSOutput" there was again the run-on line of letters...  ? What is that??

I trashed the card out of Logins... made a new card...with new password.      ..... went to clothing account and put in new password  - it seems fine. 

Is it?

I need javascript to access/print Ticketmaster concert tickets, Firefox drop-down menu doesn't show options choice. How do I obtain the options choice within the Firefox menu?

HI. Firefox seems to be logging me out of all my sites when I turn off my desktop. In some cases, it won't even let me access certain login screens. I've already followed instructions about resetting cookie/login/search history settings, etc, but it doesn't seem to fix the problem. Any ideas/advice?

For the past several weeks when I click on Messenger from the Facebook web page I get a blank page with the Facebook header. Same if I click the little shortcut button (brings up a blank box). I've cleared all cookies and cache but no change. I do not have this problem with Safari so I believe it is a Firefox issue and not a Facebook issue.