Cannot use back button, Document expired. Need a workaround on 1 website. Also mozilla says it crashes every time I close it.

Question

I use one website extensively day to day in researching for my business. Move forward and bacj to original search in order to tweak the search criteria and Im constantly getting:
Document Expired
This document is no longer available.
The requested document is not available in Firefox's cache.
As a security precaution, Firefox does not automatically re-request sensitive documents.
Click Try Again to re-request the document from the website.
This has become a real pain in the neck and I need to find a work around. Ive researched to find check the box stating
"override automatic cache" which is checked already and still have the issue.
ALSO everytime I shut down firefox I get a message stating it has crashed??

Answer 1

You can clear your cache without clearing anything else.
If you are using the Clear Recent History dialog, make sure to expand the lower section ("Details") and uncheck the other categories of personal data.
Or you can use the method described below.
I haven't researched the status of this issue since the Firefox 32-33 days, so here's an old thread and some old advice:
[https://support.mozilla.org/questions/1025750 Why do I get document expired every time I go back in search results?]
'''Steps to clear Firefox's cache or manually set a different size'''
Start by calling up the Options/Preferences dialiog:
''For Windows:''
"3-bar" menu button (or Tools menu) > Options > Advanced > Network mini-tab
''For Mac:''
"3-bar" menu button (or Firefox menu) > Preferences > Advanced > Network mini-tab
On that tab, in the second section, which should be labeled Cached Web Content, you can try either:
* Clear Now (if you have a large hard drive, this may lock up Firefox for a couple minutes)
* Check the box for "Override automatic cache management" and, if desired, increase the cache size from the default of 350 megabytes