1482796 - :screenshot - high dpr/fullpage options cause browser to crash

Status: NEW

(DevTools :: Console, defect, P3)

Description

[Cristian Fogel [:cfogel]]

[Affected versions]:
- 62.0b16, 63.0a1 (2018-08-12)

[Affected platforms]:
- all

[Steps to reproduce]:
1. Launch Firefox;
2. Navigate to https://www.youtube.com/
3. Open devTools - console tab;
4. Type ":screenshot --dpr 10 --fullpage” in the console;
5. Press Enter on the keyboard;

[Expected result]:
- no issues occur;

[Actual result]:
- delay on screenshot save;
- crash occurs;
- for long pages(ones with comments) warning messages are thrown in the console);
- when only "dpr [value]" option is issued and value is above 20 it's treated as a timer;


[Regression range]:
- not a regression

[Additional notes]:
- for more info please check
 https://bugzilla.mozilla.org/show_bug.cgi?id=1464461#c145