Also I have more photo examples I can upload to show you, but this forum is only allowing me to upload one.
Let me know if there's an email where I can send you the rest of my examples. Thanks.

Unfortunately, very recently, Firefox 68.0 (released on 9 July 2019) introduced a new security restriction which blocks the loading of Juicebox galleries locally (from your computer's hard drive). (There is no problem once the gallery has been uploaded to a web server.)

Here is the relevant entry from the Firefox 68.0 Release Notes: https://www.mozilla.org/en-US/firefox/6 … easenotes/

It's an unfortunate turn of events but, thankfully, not an insurmountable problem as there is a workaround.

Here are the steps required to relax this security restriction:
(1) Enter about:config in your Firefox browser's address bar.
(2) Click past the warning via the "I accept the risk!" button.
(3) Enter privacy.file_unique_origin in the search bar.
(4) Double-click the Preference Name to change the Value from 'true' to 'false'.

***Please do so at your own risk*** (although this should be no more of a risk than running the previous version of Firefox (67.0.4)).

I hope this helps.

Please double-check your version of Firefox and, assuming you are running Firefox 68.0 (the version which introduced the security restriction causing the problem), please try the instructions again.
The privacy.file_unique_origin preference does exist in my own Firefox 68.0 browser and the solution I posted worked for myself and another user in this forum thread.
Please also see the screenshot attached to this post which shows the privacy.file_unique_origin preference in the about:config section of my own Firefox browser.

That's strange. If you did not have the latest version of Firefox (68.0) installed, then you should not have encountered the problem. The problem with viewing galleries locally in Firefox only started with Firefox 68.0 when they introduced the new security restriction.
Please try my suggestion anway and let me know how you get on. Thanks!

Thank you for the update.
Looking back over your posts, I have now been able to replicate the problem myself.
The issue seems to be with using ../ in your baseUrl.
Firefox does not seem to like loading galleries locally (even after setting privacy.file_unique_origin to false) if you use ../ in your baseUrl to go back a level in your directory structure.
You can still use a relative baseUrl and view your galleries locally in Firefox but you would need to change your directory structure to do so, for example:

baseUrl="galleries/gallery001/",

The problem seems to specifically be with the use of ../ in the baseUrl. There seems to be no problem with using ../ in the path to the 'juicebox.js' file.
Oddly enough, you can view galleries which use ../ in the baseUrl locally in Edge (Windows) and most likely also in Safari (Mac) as long as you select 'Disable Local File Restrictions' from the 'Develop' menu first (details in this forum post).
I have notified the developers of this but there's probably very little that can be done from within Juicebox to affect core browser functionality.
At least, knowing the problem, you should be able to work around it (by changing your directory structure and ensuring that you do not need to go backwards to reach the gallery folder via the baseUrl).
I hope this helps.

You're welcome!
I'm glad to hear that you've got everything working. Thank you very much for letting me know. It's most appreciated.

Incidentally, I've notified the developers of both issues above: the inability to view galleries locally in Firefox 68 and the strange problem regarding the use of ../ in the baseUrl (again, locally in Firefox).
I'm not sure what, if anything, can be done from within Juicebox to counter either of these issues (I expect nothing can be done with regard to the former) but at least bug reports have been filed and we have workarounds in the meantime.

@adec

You're welcome! I'm glad this thread has helped you out.

I hope all goes well. Just let me know if you run into any difficulties and I'll do my best to help you out.
For reference, the Embedding Guide is here.

There's nothing wrong with using an iframe but there are some drawbacks to doing so (which are noted here... scroll down to "2) Using an iframe") so I'd always recommend embedding directly into a web page (following either the regular embedding instructions or the baseUrl embedding instructions) where possible.

If you run into any difficulties, then perhaps you could let me know a little more about how you are trying to embed your gallery (maybe an example would help me to understand your scenario better) and I'll try to help further.