Deletion of data carried out? What data are you referring to?

Thank you for your reply.

I performed "deletion of private data" function.

Please see the attached picture.

About the Screenshot_4 Size is increasing. The private data (history) is not deleted?

Thank you.

(I translated it into English in this homepage.) http://www.excite.co.jp/world/english/

See also [/questions/943471]

Translated via Google Translate:

If you are using firefox, data will continue to gradually enlarged, the response of the erasure of the private data can be extremely bad.

than immediately after installation and the information in firefox in → "Applications" "set" android, the size of the data is extremely enlarged. Along with this, we step response of the erasure of the private data is getting worse.

Erase private data, or Clear History will probably not have been made in practice? 

Thank you for your reply.

To be sure, history data is not displayed. (Please see the attached picture.)

I am sorry to be poor at English. Should I just understand as follows? "The data in which firefox continues increasing is not history data."

Is increase of the data of firefox a known bug? A resource will be pressed.

Thank you.

I experimented in some.

The great portion of increasing data seems to be cache data. It seems that cache data are not deleted by "deletion of private data."

The following is experiment description.

1. I changed the preservation place of cache data into the external SD card. It is for checking the size of cache data.

about:config

browser.cache.disk.parent_directory → /mnt/sdcard/external_sd/firefoxcache

2. I performed "deletion of privacy data", after visiting two or more web sites, and I ended firefox.

3. I checked that the size of cache data was increasing.

I performed 2. and 3. 3 times.

Next, I had to disable that firefox to cache. I was able to suppress "increase of data." Somewhat, but it increases.

disable to cache.

about:config

browser.cache.disk.capacity → 0
browser.cache.disk.enable → false
browser.cache.disk.smart_size.enabled → false
browser.cache.offline.capacity → 0
browser.cache.offline.enable → false

Thank you.