All websites i'm logged into are being dislogined approximately once a month. I'm sure i don't have any active cleaner or smth else. For example, one day everything is ok, andon the next I see that I'm signed out from all my websites, including all google accounts, etc. Problem started approximately when Opera updated itself to "Opera One".

I have bought an additional external drive, now I don`t experience the problem. Seems like Windows automatically deletes some crucial files when there is no or low space on system drive C.

@davide98 I have noticed, the issue is probably somehow connected to Tab: History -> Delete data. Inside there are some options to choose from "24 hours", "7 days", "4 weeks", "From all time". And opera for some reason automatically deletes data when the chosen period comes. (If "4 weeks" selected, it deletes it every 4 weeks. If 24 hours - every day. And the most strange thing, when chosen "From all time", it deletes data every day as well).

@burnout426 1) opera://settings/clearBrowserData. In Basic tab: All checks are unmarked except of "Cached images and files", selected Time period: "All time". Advanced tab: All checks unmarked, time period: "All time".
2) opera://settings/cookies. "Block third-party cookies in private mode" is selected. No other specific settings were not changed/setuped there.
3) I don`t press Delete button, simply chose "Time period" and closed by pressing "Cancel".
4) Date, time, etc are correct, opera sync is not used.

As for cookies that expire, I`m not sure, I have tried to view them on the example of google, but there are a lot of them, I failed figuring out which one is session cookie. Some of them indeed have expiration date of short period (e.g 26.12.2023 ; 01.01.2024), while some till 2025.

I will wait some time, last time i was logged out from all sites on 10.12.2023, probably some logout date will be same as in cookies expiration date. But what disproves this theory is that it logs out from not just one, but all sites.

(When on opera://settings/clearBrowserData Time period was selected "4 weeks", I got logged out approximately once a month, I never pressed "Delete" button.)

I have bought an additional external drive, now I don`t experience the problem. Seems like Windows automatically deletes some crucial files when there is no or low space on system drive C.

I need to reinstall Opera to fix some bugs, but I can`t loose all my opened tabs, settings, tab groups, bookmarks. Is there any way to reinstall opera without loosing all these? Thank you.

Update. Today i got dislogined again. (28.12.2023). Last time was 10.12.2023. So 18 days passed. This time I sure the issue is not in cookies expiring, as none of them had this date as expiration date. Moreover, I was dislogined from all my websites instead of only one. Problem persists. I think probably here will work only opera reinstallation, but I can`t loose all my opened tabs, settings, tab groups, bookmarks. Is there any way to reinstall opera without loosing all these? Thank you.

@burnout426 1) opera://settings/clearBrowserData. In Basic tab: All checks are unmarked except of "Cached images and files", selected Time period: "All time". Advanced tab: All checks unmarked, time period: "All time".
2) opera://settings/cookies. "Block third-party cookies in private mode" is selected. No other specific settings were not changed/setuped there.
3) I don`t press Delete button, simply chose "Time period" and closed by pressing "Cancel".
4) Date, time, etc are correct, opera sync is not used.

As for cookies that expire, I`m not sure, I have tried to view them on the example of google, but there are a lot of them, I failed figuring out which one is session cookie. Some of them indeed have expiration date of short period (e.g 26.12.2023 ; 01.01.2024), while some till 2025.

I will wait some time, last time i was logged out from all sites on 10.12.2023, probably some logout date will be same as in cookies expiration date. But what disproves this theory is that it logs out from not just one, but all sites.

(When on opera://settings/clearBrowserData Time period was selected "4 weeks", I got logged out approximately once a month, I never pressed "Delete" button.)

@davide98 I have noticed, the issue is probably somehow connected to Tab: History -> Delete data. Inside there are some options to choose from "24 hours", "7 days", "4 weeks", "From all time". And opera for some reason automatically deletes data when the chosen period comes. (If "4 weeks" selected, it deletes it every 4 weeks. If 24 hours - every day. And the most strange thing, when chosen "From all time", it deletes data every day as well).

All websites i'm logged into are being dislogined approximately once a month. I'm sure i don't have any active cleaner or smth else. For example, one day everything is ok, andon the next I see that I'm signed out from all my websites, including all google accounts, etc. Problem started approximately when Opera updated itself to "Opera One".

All websites i'm logged in are being dislogined approximately once a month. I'm sure i don't have any active cleaner or smth else. For example, one day everything is ok, andon the next I see that I'm signed out from all my websites, including all google accounts, etc.