On that page it says that it is recommended and that "Firefox only recommends add-ons that meet our standards for security and performance.". I have had no problems with any performance issues with it. However, you have to be very careful with it and make sure that if you are filling out a form or something that you tell the addon to keep the tab. Auto Tab Discard has the options to keep a tab for the session, or always keep tabs for a specific site. Just make sure it keeps the tab for a page that you are writing something on, otherwise you might lose information not submitted. I am not sure about this, I don't remember testing it, but just be safe.
As for the about:config settings, I believe they were these two:
browser.cache.disk.enable = false
browser.cache.memory.max_entry_size = 512
The first one is obvious. The second one limits the cache to only storing it if the entry is less than 512KB. My reasoning to change was that it should this to a smaller value was that smaller things like tiny images would be used across pages whereas larger things are less likely to be.
One I didn't change was browser.cache.memory.capacity, look it up if you want. From memory, the one that really seemed to matter was browser.cache.disk.enable to false, I really don't know why.
On that page it says that it is recommended and that "Firefox only recommends add-ons that meet our standards for security and performance.". I have had no problems with any performance issues with it. However, you have to be very careful with it and make sure that if you are filling out a form or something that you tell the addon to keep the tab. Auto Tab Discard has the options to keep a tab for the session, or always keep tabs for a specific site. Just make sure it keeps the tab for a page that you are writing something on, otherwise you might lose information not submitted. I am not sure about this, I don't remember testing it, but just be safe.
As for the about:config settings, I believe they were these two:
browser.cache.disk.enable = false
browser.cache.memory.max_entry_size = 512
The first one is obvious. The second one limits the cache to only storing it if the entry is less than 512KB. My reasoning to change was that it should this to a smaller value was that smaller things like tiny images would be used across pages whereas larger things are less likely to be.
One I didn't change was browser.cache.memory.capacity, look it up if you want. From memory, the one that really seemed to matter was browser.cache.disk.enable to false, I really don't know why.
I hope it works for you. Have a good day.