If you go to the main menu button and click Bookmarks, Firefox should display a list of recently added bookmarks, in newest to oldest order.

If it's not there, then it didn't get added. Is this problem exclusive to manually created javascript: bookmarks or are regular URLs also affected?

If it is there, then the question is where it went. I have too many bookmarks on my toolbar, so often when I use right-click > Add Bookmark, the new one ends up at the bottom of the overflow list (>> button next to Other Bookmarks). Could you check whether that is happening on yours?

I tend to avoid the overflow area on the Bookmarks Toolbar and instead place folders on the toolbar. I use code in userChrome.css to add a scroll bar to drop-down lists.

What happens if you create the new bookmark in the Bookmarks Manager (Library) ?

I tend to avoid the overflow area on the Bookmarks Toolbar and instead place folders on the toolbar. I use code in userChrome.css to add a scroll bar to drop-down lists. What happens if you create the new bookmark in the Bookmarks Manager (Library) ?

The bookmark just disappears if its a bookmarklet, if its a url then it works as normal. And if i try editing a bookmark to be a bookmarklet, the url just doesnt change

If you go to the main menu button and click Bookmarks, Firefox should display a list of recently added bookmarks, in newest to oldest order. If it's not there, then it didn't get added. Is this problem exclusive to manually created javascript: bookmarks or are regular URLs also affected? If it is there, then the question is where it went. I have too many bookmarks on my toolbar, so often when I use right-click > Add Bookmark, the new one ends up at the bottom of the overflow list (>> button next to Other Bookmarks). Could you check whether that is happening on yours?

It works normally with urls, but javascript: bookmarks, whether from a website or coded by hand, just dont work. and i only have 3 bookmarks

Those bookmarklets are valid JavaScript code for a bookmarklet? Can you give an example of some bookmarklets that fails for you?

Those bookmarklets are valid JavaScript code for a bookmarklet? Can you give an example of some bookmarklets that fails for you?

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Thats just the code of the one i'm trying

Will Firefox add one if you drag-and-drop? I have a bunch you can test over here:

https://www.jeffersonscher.com/res/sumomarklets.html

If that doesn't save either, could you check the Browser Console (Ctrl+Shift+J) and see whether attempting to add it created any error message?

Will Firefox add one if you drag-and-drop? I have a bunch you can test over here: https://www.jeffersonscher.com/res/sumomarklets.html If that doesn't save either, could you check the Browser Console (Ctrl+Shift+J) and see whether attempting to add it created any error message?

The bookmarklets there work, however i'm still stumped on how i can get the bookmarklet code i provided into my bookmarks

There are a lot of escaped characters in the code that normally wouldn't all appear. Is this the full code as the last part looks weird to me ?

Does it work if you unescape the code and let Firefox escape them when you create the bookmark?

javascript:(function(){var p;while(p=prompt('Enter escaped code')){prompt('unescape',unescape(p))}})()

There are a lot of escaped characters in the code that normally wouldn't all appear. Is this the full code as the last part looks weird to me ? Does it work if you unescape the code and let Firefox escape them when you create the bookmark? javascript:(function(){var p;while(p=prompt('Enter escaped code')){prompt('unescape',unescape(p))}})()

That is indeed the full code, and i do not understand that js code lol

I personally wouldn't trust code like you posted above that is so heavily obscured/packed, but like I wrote: it doesn't look complete to me and that is why Firefox may nor accept it. Where did you get this code and what is it supposed to do ?

I personally wouldn't trust code like you posted above that is so heavily obscured/packed, but like I wrote: it doesn't look complete to me and that is why Firefox may nor accept it. Where did you get this code and what is it supposed to do ?

Ah, turns out the bookmarklet is just trying to replicate a chrome extension, so yeah, problem solved